JPS62297358A - Antistatic substance and method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to substantially static-free foamed thermoplastic articles, including cups and containers, and methods of making those articles and intermediates suitable for their manufacture.

Foamed thermoplastic cups and containers are known. These are molded from polystyrene or beads thereof that initially contain about 5 parts by weight of a hydrocarbon blowing agent. The sealed cell structure of the expanded polystyrene cup is e.g.
cu, f t, , internal volume approximately 200cj, weight approximately 2
It is made according to the desired insulation properties from 2 or less to about 32 or more. Processing of cups from polystyrene beads involves pre-expansion of the beads, addition of several weight percent of molding/melting lubricant (usually zinc stearate), aging under constant conditions to equilibrate the blowing agent, and finally pre-expansion. It consists of heating the expanded beads in a cup shape. During the molding operation, the initially spherical pre-expanded polystyrene is further expanded and melted together, e.g. into a dodecagonal sphere, to obtain a clean molded cup.

Expanded polystyrene cups lubricated and molded with regular zinc stearate exhibit the same dielectric properties as polystyrene;
Easily charged with static electricity, powdered food adheres to both sides, and if you stack a large number of cups, they will stick to each other during use.

In many cases, the static electricity between the cups is greater than the force required to drop the lowest cup from the stack of cups. Especially about 1.
The 82 foamed thermoplastic cups are held together by a small amount of static electricity to keep them from falling off the stack. Furthermore, static electricity attached to the sides of the cup tends to cause food in the lower cup to adhere to the inner wall, and food in contact with the outer wall of the adjacent upper cup to move to the outer wall of the cup.

Many attempts have been made to prevent static electricity. For example, U.S. Patent Nos. 3,206,429; 3,236,68
1;3,595°464:3.796,366. U.S. Pat. No. 3,206,429 discloses the use of N,N-jetanol oleamide.

This is a method in which N,N-jetanol oleamide is dissolved in isopropanol or the like, mixed thoroughly with polyethylene pellets, and then coated with the solution. The coated pellets are molded into molded products or films.

U.S. Patent No. 3,236,681 describes the above formula
) n alkyl diacid phosphate salt (X is e.g. ammonia, alkali metal, n is 1-3", RFiCl-1
8 alkyl), for example ammonium amyl hydrogen phosphate, with a film of an aqueous solution of the antistatic agent.

US Pat. No. 3,236,681 discloses a method of coating polystyrene particles with antistatic agents for further processing. U.S. Pat. No. 3,595,464 discloses coating polystyrene cups with active agents such as aluminum lauryl sulfate and organic amide builders.

US Pat. No. 3,796,366 discloses the application of nonionic aqueous emulsions of polyethylene. These methods have problems with the amount of antistatic agent that sufficiently covers the beads when pre-expanding or expanding the beads.

As the beads expand, the film thickness decreases and when placed in a heated pre-expander, the antistatic agent that evaporates and covers the beads is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the disadvantages of the prior art methods and to provide a method for producing foamed thermoplastic articles (e.g. cups, containers) that is substantially static free. using an agent.

Another object is to provide an antistatic agent suitable for use in this method and suitable for use with food products.

Further objects will become apparent from the description below.

According to one aspect of the present invention, a method of combining antistatic agents with thermoplastic beads subjected to pre-expansion or full expansion to create antistatic articles of foamed thermoplastics is provided. Antistatic agents are suitable for use with foods and are combined in sufficient amounts with any of the following:

(→ Thermoplastic beads to be expanded before feeding into a pre-expander. Then this combination is injected into a pre-heated pre-expander for pre-expanding the beads.

(C) The beads in the preheated preexpander immediately after injecting the beads into the preheated preexpander for preexpanding the beads; and (C) The preexpanded beads in liquid form into the final article. The steam that sends the beads into the mold for molding causes the antistatic agent that comes into contact with the heating part to become atomized and evaporate, filling the space and uniformly coating the expanding beads, making them an antistatic agent. Make it conductive. Many preferred surfactants or emulsifiers are solids, have melting points slightly above room temperature, are somewhat viscous at room temperature, and are stored in a refrigerator or the like before use. These are pulverized in solid form and frozen.

If the antistatic agent is a solid and is combined with the beads outside the preexpander, the mixing with the beads is at a temperature and shape that allows for their mixing (e.g. small particles, e.g. the solid antistatic agent is when melting at room temperature or slightly higher temperature)
The solid is held below its melting point or viscous temperature and then heated, for example in a preheated pre-expander, to a temperature that allows the beads to expand, and the solid that fills the space The vapor or mist of the antistatic agent should be evenly coated on the expanding beads.

In some cases, antistatic agents (solid surfactants or emulsifiers)
can be used as a solid mass. Again, the temperature is maintained at such a temperature that it does not stick or melt. If the material is in powder or flake form, it is added to the beads and mixed at a temperature at which it does not stick or melt, and the composition is then injected into a pre-expander where the antistatic agent is atomized or evaporated. Allow the beads to expand evenly.

If the antistatic agent to be combined with the beads is a liquid and is mixed with the beads before entering the preheated preexpander, it is mixed with the beads and the composition is then e.g. The beads are injected to expand and the antistatic agent is atomized or evaporated to uniformly coat the expanding beads.

Even when the antistatic agent is in liquid form, it is injected separately from the beads into a heating area (eg, a preheated preexpander) where it is atomized or evaporated to uniformly coat the expanding beads.

Since pre-expansion occurs between about 275° C. (about 135° C.) and about 300° C. below (about 149° C.), it may be sprayed into a pre-expander and atomized or evaporated therein.

After preexpanding the thermoplastic with the antistatic agent, the coated preexpanded beads are then stored for use in the final expansion step. During the final molding process, the antistatic agent coated on the beads also acts as a lubricant for the mold.

Preferably, the beads contain the necessary volatile blowing agent to enable expansion.

If the thermoplastic beads are pre-expanded without an antistatic agent, the antistatic agent can be injected (in liquid form) into the line that delivers steam to the mold cavity of the mold.

The atomizer then evaporates, filling the mold and covering the pre-expanded bead material during the final expansion of the beads, and the final molded article is formed.

If the antistatic agent is added either before or during pre-expansion, it should be added in an amount of about O11 by weight or in excess, preferably about 0.
．． It is desirable to use an excess of 2% by weight. Adding about 0.1 weight fraction of the bead weight also gives satisfactory results. The same applies to the cases where the delay of 1st, 1.5th, and 2nd stage is used. Adding an antistatic agent in a ratio of about 5 to the weight of the beads gives acceptable results, but is economically undesirable. Additions of about 6.25% do not give acceptable results. In particular, the flow characteristics of beads are poor. However, even if such a large amount is used, the problem can be solved by using a pressurized filling system. But of course it cannot be said to be economical. The flow properties of the beads thus treated are also improved by the addition of zinc stearate. But this is also not economical.

If too much antistatic agent is added, the molded part will stick in the mold.

Therefore, when combining pre-expanded beads with antistatic agents in the mold, the amount should be limited to minimize sticking.

When much less than 0.1 weight factor is used, static electricity is slightly reduced, but not enough to provide a sufficiently anti-static component.

Unexpectedly, in accordance with a previous aspect of the present invention, a substantially static free molded article of expanded thermoplastic material comprising beads of expanded thermoplastic material formed into the shape of an article such as a cup or container is provided. Nonionic, anionic, cationic, amphoteric surfactants or emulsifiers suitable for use as antistatic agents in manufacturing are provided.

These are (a) fatty acid diglycolamide, Φ) higher fatty acid ester of polyglycerol, (c) (1) monoethanol lauris sulfate, (C) Of) lauryl ether sulfate, (d) high i flucol ethoxylate, (e) Quaternized ethoxylated amine, (O fatty acid ester ethoxylate, (2) higher fatty acid ester of glycerol, 61) higher amine oxide, (i) aliphatic sulfonate, θ) citric acid ester of monoglyceride, (k )
2-alkyl-1-[ethyl-betaoxypropionic acid]-imidacillin, (1) Alkyl dimethyl betaine, ... lauroyl sacosinate, (n) Higher ethoxylate sorbitan ester of higher fatty acids, (0) HiL oil ethoxylate (ethoxylated castor oil); (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil); It comprises at least one antistatic nonionic, anionic, cationic, amphoteric surfactant or emulsifier suitable for use with.

That is, a substantially static free article of a foamed thermoplastic article (e.g., cup, container) comprising a foamed thermoplastic material shaped into an article and at least one surfactant or emulsifier as described above suitable for use with food products. υ・ is provided.

Preferred surfactants or emulsifiers may be applied to the surface of the preformed article, for example, by spraying with a thick emulsion under pressure. Further, a part or the entire surface of an article (cup or container) can be coated by a method using a brush or the like.

It may also be mixed with thermoplastic beads (before expansion). In this case, this can be reversed by mixing seeds prepared by mixing beads with a liquid surfactant or emulsifier with a flaky or powdered surfactant or emulsifier.

According to another aspect of the invention, the thermoplastic material and (a)
fatty acid diglycolamide, (b) higher fatty acid ester of polyglycerol, (c) (i) monoethanol lauris sulfate, (C) 0+) lauryl ether sulfate, (d) higher flucol ethoxylate, (e) quaternary (f) fatty acid ester ethoxylate, (b) higher fatty acid ester of glycerol, 0) higher amine oxide, (i) aliphatic sulfonate, θ) citric acid ester of monoglyceride, (k)
2-alkyl-1-[ethyl-betaoxypropionic acid]-imidacillin, (1) Alkyl dimethyl betaine, ... lauroyl sacosinate, (n) Higher ethoxylate sorbitan ester of higher fatty acids, (0) Castor oil ethoxylate (ethoxyl (b) fatty acid esters of lactylate (e.g. lactylate esters of stearic acid or palmitic acid); A combination with at least one suitable antistatic nonionic, anionic, cationic, amphoteric surfactant or emulsifier is provided.

However, in preferred embodiments, sufficient amounts of the antistatic agents described above are combined with any of the following:

(a) The thermoplastic beads to be expanded before being fed to a pre-expander, after which the combination is injected into a pre-heated pre-expander for pre-expanding the beads.

Φ) the beads in the preheated preexpander immediately after injecting the beads into the preheated preexpander for preexpanding the beads; and (C) the preexpanded beads in liquid form in the final article. The steam that sends the beads to the mold to form them into a mold causes the antistatic agent that comes into contact with the heating section to become atomized and evaporate, filling the space and uniformly coating the expanding beads.

Preferred antistatic agents include:

1. (i) Lauric diethanolamide, (II)
A fatty acid dialkylolamide preferably made from coconut jetanolamide, (110 millisinac jetanolamide, GV) stearic jetanolamide.

Examples of preferred Laurik diethanolamides include the following commercially available products: (a) Lankrostat J, P, (Diamond Jamrock U, K, Inc.) Φ) REWOAMID DL 203/S (Rebo Chemicals Inc.) ) EMPILAN LDX (Albright and Wilson) (Lauric diethanolamide 2:1) (d) MARLAMID D1218” (Hüls U, K, Ltd.) (e) EMPILAN LD
E (Albright and Wilson) (Lauric diethanolamide 1:1) (f) EMPILAN
CDE-FF" (Lauric diethanolamide 1:1) Examples of preferred coconut diethanolamines are: (a) MARLAMID D1218" (b) EMPI
LAN CDE/FF" (same as above) Examples of preferred stearic jetanolamides are: (a) MONAMID 150MN (DF Ansted, Mona Industries) Examples of preferred stearic jetanolamides are: The following products are: (a) MONAMID 718 (DF Ansted, Mona Industries) 2. Higher fatty acid esters of polyglycerol, such as polyglycerol esters of lumitic acid or stearic acid.

(i) Polyglycerol stearate/panopetate ester Examples of polyglycerol stearate/palmitate esters are the following products: (a) GRINDTEK PGE35 (Grinstead Products) (b) GNINDTEK P(, E55) /6 (same as above)
4. (a) Monoethanolamine lauryl sulfate.

An example of a preferred monoethanolamine lauryl sulfate is EMPICOL LQ33T.

Φ) Lauryl ether sulfate.

4. Higher alcohol ethoxylates, such as (i)
Ethoxylate of oleyl alcohol with H, L, B, value 9.0, e.g. trade name VOLPO05 (Kuroda Chemicals) (+D Ethoxylate of oleyl/cetyl alcohol with H, L, B, value 12.7, e.g. trade name LUB
ROL 17AIO (1, C, 1, Company).

5. Quaternized ethoxylated amines, such as (1) quaternized coconut amine ethoxylate.

An example of a quaternized ethoxylated amine is the trade name E thoq.
uadC12 (Armor-Hess Chemicals).

6. Fatty acid ester ethoxylates, for example (1)
Product name: TEXOFORCI (ABM Chemicals) unsaturated fatty acid ester ethoxylate, (Ii) polyethylene glycol monostearate, OiD polyethylene glycol monooleate, (example of polyethylene glycol monostearate is product name CIHHRO)
L l0M5).

7. Higher fatty acid esters of glycerol, such as (
1) Product name EMPILAN GMS 5E400. E
PPILAN GMS N5E40 (Albride & Wilson) glycerol monostearate.

8. Higher amine oxide, for example (1) Trade name E
Coconium amine oxide MPICEN OB (Albride & Wilson).

9. Aliphatic sulfonates, for example (1) Trade name HO8TASTAT) (S-1 (Hoechst U, K.

company).

10. Citric acid esters of monoglycerides, e.g.

(1) Neutralized citric acid ester of monoglyceride made from edible refined fats and oils containing balmitic acid and stearic acid as main fatty acids, trade name GRINDTEK C
A-P” (Grinstead Products).

11.2-Alkyl-1-[ethyl-betaoxypropanoic acid]-imidazoli/, for example (1) Trade name CRODATERCC0 Broad alkyl dimethyl betaine, for example (1) Dodecyl dimethyl betaine with trade name AMBITERID D40.

B. Lauroyl sarcosinate, for example, trade name CRO
I) ASINIC lauroyl sarcosine.

14. Higher ethoxylate sorbitan esters of higher fatty acids, for example: (1) Polyoxyethylene sorbitan monostearate, stearic acid/valmitic acid ester of ethoxylated sorbitan has the trade name CRILLET3; Stratified castor oil), for example (+) Trade name ETHOCAS 35° Hydrogenated castor oil ethoxylate (Ethoxylated hydrogenated castor oil)
, for example, trade name CRODURET 30゜17, fatty acid ester of lactylate, for example (1) lactylate ester of stearic acid or palmitic acid/
Stearic/palmic acid esters of lactic acid: (a)
Sodium stearoyl-2-, trade name GRINDTEKFAL-1 (Grindstead Products)
ゝ Lactate.

FIG. 1 shows a pre-expansion device for coating beads of thermoplastic material to be expanded with an antistatic surfactant or emulsifier according to the invention, FIG. 2 shows another embodiment of said device, and FIG. FIG. 3 is a cross-sectional view of the molding apparatus used to coat pre-expanded beads with an antistatic agent according to the present invention.

In FIG. 1, there is a storage box 1 containing polystyrene beads containing the amount of blowing agent required for expansion. A supply tube 12 places the beads into a Conatr pre-blen hoop 1514. A solid antistatic agent (lauric diethanolamine) is in powder form and stored in a storage container 16 at a temperature at which it does not stick or melt in the coil 18 of the refrigeration unit 20.
Refrigerate.

The antistatic agent is passed through the delivery tube 22 and the thermoplastic beads (
The antistatic agent is added to the mixing chamber 24 at a ratio of 0.5% by weight to the antistatic agent (including the foaming agent). Beads are supplied to the mixing chamber 24. The mixture is collected in chute 26 and fed to feed hopper 28 of preexpander 30. The mixture is kept cool and preweighed in see-through glass 32 for addition to pre-expansion chamber 34. Pre-expansion of the beads occurs in chamber 34 between about 275"F (135C) and about 300F (about 149C). At that temperature, the solid antistatic agent rapidly atomizes or evaporates to fill the chamber. As the beads expand and fill the chamber, they are uniformly coated. After pre-expansion, the coated beads are placed in a hopper 35 and led to a sizer 37.

In FIG. 2, a pre-expansion device 40 is provided to coat the liquid antistatic agent diethanolamine onto the beads. In the apparatus shown in FIG. 1, the solid antistatic agent is supplied to a mixing chamber 24 along with beads supplied from a hopper 14. In the embodiment of FIG. 2, the Conair type preblender 15 is not required, and the liquid antistatic agent is transferred from the storage container 50 to the pre-expansion chamber 34 in an amount of about 0.5% by weight based on the beads through the inlet 52. Preweighed directly. Other than this point, FIG. 2 is the same as FIG. 1. Therefore, in the embodiment shown in FIG. 2, the supply tube 12 directly feeds the hopper 2 from the storage box 10.
8 and finally to the preheated expansion chamber 34. Meanwhile, a pre-metered amount of liquid antistatic agent enters the chamber 34 from the storage container 50 through the inlet 52. When added to the preheated chamber,
The liquid antistatic agent immediately evaporates and atomizes, filling the chamber. After pre-expansion, the pre-expanded beads are transferred to a storage chamber to be made into molded articles such as foam cups or containers.

The following antistatic agents are particularly suitable for polystyrene beads used in the pre-expansion process according to FIGS.

(a) Lankrostat J, P, (t,
m, = trademark) (Diamond Jamrock Co., Ltd. Nonionic diethanolamide) (b) (i) Empilan LDE (t, m
, ) (Albride & Wilson) - Nonionic diethanolamide (1:1) (ii) Empilan LDX (t, m,) (Albride 7 & Wilson) - Lauric diethanolamide (jetanolamide: acid 2:1) (c) REWOAMID 0L203/S (RE
WO Chemicals) - Laurik diethanolamine (d) Marlamid D 1218 (Hüls U
, S1 Company) - Coconut jetanolamide (e) Empilan GMS/5E40 (t, m,
) Self-emulsifying rim of glycerol monostearate (Albride and Wilson) Melting point 55-60° Density Q at 20°C, 5 f/ca Total monoglycerides (min) 36.0% Free glycerol (max) 7.0% Iodine (maximum) 3.0 Thiric acid value (maximum) 3.0%.

Sodium stearate 5.6ti(f)aost
astat H8-i (t, m,) aliphatic sulfonate (Hoechst U, K, Inc.) Odorless, harmless, water-soluble (HLB 13 ).

(g) R8/B/10/2, Lankrostat J
P (t, m, ), I Q%A1usil AS
(t, m,) Synthetic precipitated form from hydrated sodium aluminosilicate (Crossfield).

(h) R3/B/11/2 Lankrostat
JP (t, m,), 10% Speswhite Ch
ina C1ay (English China Clay Company).

(i) R3/B/14/2 Lankrostat
J P (t, m, ), 10% AlusiL AS
(t, m, ) (j) R8/B/18/2 La
nkrostat JP (t, m, ), 10%Sn
owfloss, diatom ± (silica) C June Zumamanbire Co., Ltd.).

Qc) EmpilanCDE, FF (t, m,)
): 2 Nats diethanolamide (Albright and Wilson) (1) Manamid 150MW (
t, m,) Milistic diethanolamide (1:IH
Mona Industries, Inc.) Other preferred antistatic agents: (i) Empilan LDE (ii) Monami id 718 (iii)
Grindtek PGE35 same as above 55/6 Qv) Empical LQ33T(V) V
olpo os M Lubrol 17A10 (vi) Ethoquad Cl2 (yiip
Texofor Cl 0x) Cithrol 10 MS (X) Empigen 0B (Xi) Grindtek CA-P Cxip Crodateric C (xiii)
Ambatteric D40 (xlv) Crod
asintc L(xv) Cr1llet 3 (XVQ Ethocas 35 (xvi9 Croduret 3Q(:1yii
i) The beads were pre-expanded using a Grjndtek FAL-1 apparatus as shown in Figures 1 and 2. At that time, EMPILAN and MONAMID 150MW were used as antistatic agents (see the following table).

Storage 50 MW (e) Same as above 7 minutes 1 second 6.3 (e) Same as above 5 minutes 54 seconds As an additional example, place 7502 "Dy1ite" expandable polyurethane beads in a dry pre-expansion machine (such as 34).3. 82 liquid Grindtek PGE35 to 50
Injected from a liquid distributor maintained at °C. Density 6.71bs after 6.5 minutes at max. 105°C in pre-expansion chamber
/ f t3 beads were transferred to a storage hopper. The beads were heated with steam and then injected into a cup using a multi-cavity mold to test the electrostatic properties. There was no charge at all. The stacked cups fell freely and did not become charged when rubbed against nylon cloth or polyethylene foam at 47% relative humidity and 25°C. GrindtekPG
Using zinc stearate in place of E55, the molded cup charged immediately and showed a Godastat of 14,000 volts and remained at -4,000 volts and -3,500 volts after 2 minutes and 15 minutes.

Evaluation Cups formed from pre-expanded beads with an antistatic agent added according to the present invention were evaluated.

The first test was conducted on the following points.

(a) Average Cup Weight (b) Water Soaking Effect - Porosity Check - Cups were immersed bottom up in a bucket of water.

(C) Static charge "Di (without rubbing) was measured using a Simco static meter with all holes opened and the bottom of the cup 2 inches apart.

(d)゛ Pour powdered coffee into stacked cups and shake.

Evaluations (a), (b), and (C) were performed on a set of 10 cups in the order of (a), (C), and Φ). Evaluation (d)
The tests were carried out on another set of 10 cups (see table below).

Static charge measurements and dispensing tests (using powdered chocolate) were repeated on many sets of cups as some of the cups became stale within 24 hours.

CDE/F'F 12 2.82F No leaks Oll
2.7Of no leaks OEmpilan
3.47f 0Hostas
tat 2.76f no leaks approx. ORS
/B/11/2 2.82f No leakage
OR8/B/10/2 2.98F No leaks
OR8/B/14/2 2.89F No leakage OR8/B/18/2 2.82f
No leakage OMonamid 150-MW
3.10 f approx. OEmpilan L
DE 2.60 No Leak O Stage 2 Test In this test, five selected groups from each molding trial (including freshly made zinc stearate producing cups) were stored for three days. Sifmc the static charge of the entire cup.

Static electricity was measured with a static meter (bottom of cup, 2" distance, all holes open, no strainer, scale -400+400V). A stack of cups filled with chocolate powder was tested.

The conditions in the distribution room are 23°C according to the Whirlimg hydrogen meter.
It was 45% r, h.

Empilan LDE O gmpil
an LDE 00 Slightly About Q 0V R8/B/11/2 0 None M
onamid 150-MW Oless RS/B/
18/2 0 None R3/B/1
0/2 0 None - only R8/B
/11/2 0 Very slight Ho5
tastat H810 only Empilan CDE/FF O very little E
mpilan GMS 5E40 0 None Empilan CDE/FF (1) O None 2 0 None 3) 0 None Lankrostat JP O None The antistatic expanded polystyrene cup used in the experiment was prepared with beads using the apparatus shown in Figure 2. 0.5 weight ratio L when inflated
It was molded using ankrostat JP. This amount of Lankrostat JP gave the cup good anti-static properties.

Three methods were used to examine the effects of Lankrostat JP.

1. Perform Soxhlet extraction with distilled water and examine the soluble extract from the cup surface.

2. Dye the fluorescent dye (Eosin''rc cup) and examine the fluorescence under ultraviolet light and compare with a standard zinc stearate containing EPS cup.

3. Wash the surface of the cup with warm distilled water, dry it, and check the charge.

Tests and Results 1. Soxhlet Extraction Accurately weighed pieces of expanded polystyrene cups containing approximately 0.5% Lankrostat JP were Soxhlet extracted with distilled water for 6 consecutive hours. Extract amount is 0.13
It was weight%.

2. Staining and Fluorescence Test Molded cups containing Lankrostat JP and cups containing zinc stearate were immersed in a dilute solution of eosin and distilled water for 3 minutes at 55°C. Wash the surface of the cup with distilled water for 30 minutes.
The degree of staining was examined under ultraviolet light of 0-400 nm. La
The internal surface of the nkrostat JP cup was contaminated by passing the eosin solution inside.

The outer surface of the cup was dyed strongly and evenly.

This test showed that Lankrostat JP was evenly coated on both the inside and outside of the cup. The zinc stearate-containing cup has almost no staining at all.

3. Surface cleaning The surface of the cup containing Lankrostat JP was immersed in distilled water at 800° C. for 30 minutes and dried at 70° C. for 30 minutes. The residual electrostatic charge was checked using Codastat. From these results, it can be seen that Lankrostat JP is completely dispersed in the molded product and forms a thin surface layer. Appropriate affix electric properties remain even if the surface layer is removed, suggesting that the pile electrostatic properties do not depend only on the surface layer.

Expanded polystere/cups (containing standard zinc stearate) were coated and tested with solutions or dispersions of affixing agents.

For example, Qrindte zinc stearate containing cup.
K PGE35 (polyglycerol stearate/palmitate) was anointed with a hexane solution (l Q W/W t%) and dried, which had affixed charge and no charge was generated.

Preliminary test conditions;
The cups were placed at m intervals and kept at 25° C. and 30% RH for 1 hour before testing.

Electrostatic measurements; six measurements were made for each sample: 1, initial charge 2, charge 3 after 5 seconds of rubbing with nylon, charge 4 after 30 seconds after induction, charge 5 after the same 2 minutes, residual after 17 hours. Table 1 shows the residual charge results after 6 and 21 hours of charging.

Molded cup electrostatic charge measurement Lankrostat JP Lauric diethanolamine R8/B/11/2
Modified lauric diethanolamine Empila
n LDE Lauric diethanolamine Empilan CDE/FF Coconut jetanolamine Grindtek PGE
55 Polyglycerol ester Ho5tas
tat H8-1 aliphatic sulfonate charge -200-600-200,0 o o o.

0 0 0 .

O-60000 o o o o o.

Coated film test at 25℃ Product name Chemical
Name: Lankrostat JP Laurik diethanolamine Monamid 150
MW Milistic diethanolamine/Empilan GMS SE 40
Glycerol monostearate Cr1llet
3 Ethoxylated Sorbitan Monostearate Ho5tastat H8-1 Aliphatic Sulfonate Croduret 3Q
Hydrogenated castor oil ethoxylate Lubrol
17A10 Cetyl/oleyl alcohol ethoxylate Empicol LQ 33T
Monoethanolamine lauryl salts Ethoquad C12 Quaternized coconut amine ethoxylate Atnbi teric D40
Dodecyldimethylbetaine Empigen
OB Amine oxide 8
Naoki bolt maximum average residual after 15 minutes -2000°
0 0 0. 0 -TOOO -TO o o
.

Molded cup, cup body contains 1 affix, 25℃54%
RGrindtek PGE 55 Polyglycerol Ester Grindtek PGE
55 Grindtek FAL-1 Stearoyl Lactylate Grindtek FAL-1 Ambiteric D40 Dodecyldimethylbetaine Ambiteric D40 Ethoquad C12 Quaternized Coconut Amine Ethoxylate Ethoquad C12 Empico l LQ 33T Monoethanolamine lauryl sulfate Empicol
LQ 33T Empigen 08 Amine oxide Empigen 08 Crodasinic L Lauryl sarcosine Crodasinic L Monatnid 150 MW Milistic diethanolamide Monamid 150
MW (: roduret 30 hydrogenated castor oil ethoxylate Croduret 3Q volt charge oo o.

oo　　　　o　　　　.

oo　　　　o　　　　.

oo　　　　o　　　　.

oo　　　　o　　　　.

O-20000 0+200 0 0 0 +200 0 00
+1800 +1000 00 +
1200 +200 0 Molded cup (affix rule mixed into cup body) Electrostatic charge side Completed cup test (some repeated) 25°C, 47% RI Lankro
stat JP Lauric Diethanolamide R3/B/11/2 R8/B/10/2 R8/B/10/2 Etnp i l an LDE Ernp i I an LDE Empilan CDE/FF Coconut jetanolamide Monamid 150MW
Myristic diethanolamide Monarnid
150MW Monamid 150MW Monamid 150MW Monamid 150MW ■J Intermediate Berthing after 30 seconds After 2 minutes 1
55 minutes later -500-10000 oo o o
.

O-600-300,00 oo o o
.

o o o o
.

O-200000 0+1000 -200 -200
0Product Name Chemistry
Name Crodasinic L Lauryl Sarcon Empilan GMS SE 4
0 Glycerol Monostearate Grindte
k CA-P lactic acid ester Grindt
ek FAL-1 Stearoyl lactitate Grin
dtek PGE35 Polyglycerol Ester Grindtek PGE35 Crillet 3 Ethoxylated norbitan monostearate-Crillet 3 Hostastat H8-1 Aliphatic Sulfonate C
roduret 30 Hydrogenated castor oil ethoxylate (roduret 30 E+npicol LQ33T Monoethanolamine lauryl sulfate Ethoquad
C12 quaternized coconut amine ethoxylate Ambit
eric D40 Dodecyldimethylpetai/Epigen OB Amine oxide initial charge ■ Intermediate Detachment after 30 seconds After 2 minutes After 155 minutes -400-1
0000 0-100D 0 0oo
o o.

o o o o
.

o o o o
.

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O-100000 In FIG. 3, the forming apparatus section designated 100 includes a steam manifold 10 having a condensate drain 108 with a bleeder pulp 108 leading to a drain (not shown).
It has a steam inlet 102 leading to 4. The liquid affix diethanolamide is passed from a storage container 110 through a metering line 112 into a 0.5 wt. Become. When the affix rule comes into contact with steam, it atomizes or evaporates.

The outlet 116 leading from the steam manifold 104 is
The fourteen inner cores 120 and outer cores 124 pass through screw regulators 118 and into the mold. The peripheral outlet 116 leading to the mold is a round hole 122 in the tube 116 for passing steam from the tube 121 through the round hole 122 into the circular gap 122A. A gap 122A is provided between the inner core 120 and the outer core 124 for heating and removal from the outlet 122B.

The mold cavity 130 is located on the outer surface 126 of the outer core 124.
and an expansion chamber 128 between the inner surface 13 and the outer surface 126 . A pre-expanded bead inlet 132 supplies pre-expanded beads to chamber 128 . After the beads are supplied to chamber 128, the atomized or evaporated affixes passing between the beads therein coat the beads.

The present invention is capable of many variations and is intended to be encompassed by the scope of the present invention as long as the ideas of the invention are utilized.

[Brief explanation of the drawing]

FIGS. 1 and 2 show an example of an apparatus used in carrying out the present invention, and FIG. 3 shows a cross-sectional view of an example of the apparatus used in the present invention. FIG, 2゜

Claims (1)

[Claims] 1. Expanded thermoplastic beads molded into the shape of an article, (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylate, (g) higher fatty acid ester of glycerol, (h) higher amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl sarcosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate ( (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil); (q) fatty acid ester of lactylate; Substantially antistatic article of foamed thermoplastic material comprising an anionic, a cationic, an amphoteric surfactant or an emulsifier. 2. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a fatty acid dialkylolamide. 3. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a higher fatty acid ester of polyglycerol. 4. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a compound selected from lauryl ether sulfate or monoethanolamine lauryl sulfate. 5. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a higher alcohol ethoxylate. 6. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a quaternized ethoxylated amine. 7. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a fatty acid ester ethoxylate. 8. Claim 1 in which at least one antistatic agent or emulsifier comprises a higher fatty acid ester of glycerol
Substantially antistatic article as described in Section 1. 9. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a higher amine oxide. 10. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises an aliphatic sulfonate. 11. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises a citric ester of a monoglyceride. 12. At least one antistatic agent or emulsifier is 2-alkyl-1-[ethyl-betaoxypropionic acid]-
The substantially antistatic article of claim 1 comprising an imidazoline. 13. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises an alkyl dimethyl betaine. 14. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier comprises lauryl sarcosinate. 15. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier is a higher ethoxylate sorbitan ester of a higher fatty acid. 16. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier is castor oil ethoxylate. 17. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier is a hydrogenated castor oil ethoxylate. 18. The substantially antistatic article of claim 1, wherein the at least one antistatic agent or emulsifier is a fatty acid ester of lactylate. 19. The substantially antistatic article of claim 2, wherein the fatty acid dialkylolamide comprises lauric acid diethanolamide. 20. The substantially antistatic article of claim 2, wherein the fatty acid dialkylolamide comprises coconut diethanolamide. 21. The substantially antistatic article of claim 2, wherein the fatty acid dialkylolamide comprises myristic acid diethanolamide. 22. The substantially antistatic article of claim 2, wherein the fatty acid dialkylolamide comprises stearic acid diethanolamide. 23. The substantially antistatic article according to claim 3, wherein the higher fatty acid ester of polyglycerol comprises a polyglycerol ester of palmitic acid or stearic acid. 24. The substantially antistatic article of claim 4, wherein the compound comprises monoethanolamine lauryl sulfate. 25. The substantially antistatic article of claim 4, wherein the compound comprises lauryl ether sulfate. 26. The substantially antistatic article of claim 7, wherein the fatty acid ester ethoxylate comprises an unsaturated fatty acid ester ethoxylate. 27. Claim 7 in which the fatty acid ester ethoxylate consists of polyethylene glycol monostearate
Substantially antistatic article as described in Section 1. 28. The substantially antistatic article of claim 8, wherein the higher fatty acid ester of glycerol comprises glyceryl monostearate. 29. The substantially antistatic article of claim 15, wherein the higher elexylate sorbitan of higher fatty acids comprises polyoxyethylene sorbitan monostearate. 30. The substantially antistatic article of claim 18, wherein the fatty acid ester of lactylate comprises a lactylate ester of stearic acid or palmitic acid. 31. The substantially antistatic article of claim 5, wherein the higher alcohol ethoxylate comprises an ethoxylate of oleyl alcohol. 32. The substantially antistatic article of claim 5, wherein the higher alcohol ethoxylate is an ethoxylate of oleyl/cetyl alcohol. 33. The substantially antistatic article of claim 6, wherein the quaternized ethoxylated amine comprises quaternized coconut amine ethoxylate. 34. The substantially antistatic article of claim 7, wherein the fatty acid ester ethoxylate comprises polyethylene glycol monooleate. 35. The substantially antistatic article of claim 9, wherein the higher amine oxide comprises cocoyl amine oxide. 36. Substantially antistatic according to claim 11, wherein the citric acid ester of a monoglyceride comprises a neutralized citric acid ester of a monoglyceride made from a refined edible fat containing palmitic acid and stearic acid as the main fatty acids. Goods. 37. The substantially antistatic article of claim 13, wherein the alkyldimethylbetaine comprises dodecyldimethylbetaine. 38. The substantially antistatic article of claim 14, wherein the lauryl sarcosinate comprises laurifol sarcosine. 39. The substantially antistatic article of claim 18, wherein the fatty acid ester of laurylate is sodium-stearoyl-2-lactylate. 40. The article according to claim 1, 2 or 3, wherein the surface of the article is coated with an antistatic agent. 41. The article according to claim 4, 5 or 6, wherein the surface of the article is coated with an antistatic agent. 42. The article according to claim 7, 8 or 9, wherein the surface of the article is coated with an antistatic agent. 43. The article according to claim 10, 11 or 12, wherein the surface of the article is coated with an antistatic agent. 44. The article according to claim 13, 14, or 15, wherein the surface of the article is coated with an antistatic agent. 45. The article according to claim 16, 17, or 18, wherein the surface of the article is coated with an antistatic agent. 46. The article according to claim 19, 20 or 21, wherein the surface of the article is coated with an antistatic agent. 47. The article according to claim 22, 23, or 24, wherein the surface of the article is coated with an antistatic agent. 48. The article according to claim 25, 26 or 27, wherein the surface of the article is coated with an antistatic agent. 49. The article according to claim 28, 29 or 30, wherein the surface of the article is coated with an antistatic agent. 50. The article according to claim 31, 32 or 33, wherein the surface of the article is coated with an antistatic agent. 51. The article according to claim 34, 35, or 36, wherein the surface of the article is coated with an antistatic agent. 52. The article according to claim 37, 38 or 39, wherein the surface of the article is coated with an antistatic agent. 53. The article of claim 1, wherein the body of the article comprises an antistatic agent dispersed throughout. 54. The article of claim 2, wherein the body of the article comprises an antistatic agent dispersed throughout. 55. The article of claim 3, wherein the body of the article comprises an antistatic agent dispersed throughout. 56. The article of claim 4, wherein the body of the article comprises an antistatic agent dispersed throughout. 57. The article of claim 5, wherein the body of the article comprises an antistatic agent dispersed throughout. 58. The article of claim 6, wherein the body of the article comprises an antistatic agent dispersed throughout. 59. The article of claim 7, wherein the body of the article comprises an antistatic agent dispersed throughout. 60. The article of claim 8, wherein the body of the article comprises an antistatic agent dispersed throughout. 61. The article of claim 9, wherein the body of the article comprises an antistatic agent dispersed throughout. 62. The article of claim 10, wherein the body of the article comprises an antistatic agent dispersed throughout. 63. The article of claim 11, wherein the body of the article comprises an antistatic agent dispersed throughout. 64. The article of claim 12, wherein the body of the article comprises an antistatic agent dispersed throughout. 65. The article of claim 13, wherein the body of the article has an antistatic agent dispersed throughout. 66. The article of claim 14, wherein the body of the article comprises an antistatic agent dispersed throughout. 67. The article of claim 15, wherein the body of the article comprises an antistatic agent dispersed throughout. 68. The article of claim 16, wherein the body of the article comprises an antistatic agent dispersed throughout. 69. The article of claim 17, wherein the body of the article comprises an antistatic agent dispersed throughout. 70. The article of claim 18, wherein the body of the article comprises an antistatic agent dispersed throughout. 71. The article of claim 19, wherein the body of the article comprises an antistatic agent dispersed throughout. 72. The article of claim 20, wherein the body of the article comprises an antistatic agent dispersed throughout. 73. The article of claim 21, wherein the body of the article comprises an antistatic agent dispersed throughout. 74. The article of claim 22, wherein the body of the article comprises an antistatic agent dispersed throughout. 75. The article of claim 23, wherein the body of the article comprises an antistatic agent dispersed throughout. 76. The article of claim 24, wherein the body of the article comprises an antistatic agent dispersed throughout. 77. The article of claim 25, wherein the body of the article comprises an antistatic agent dispersed throughout. 78. The article of claim 26, wherein the body of the article comprises an antistatic agent dispersed throughout. 79. The article of claim 27, wherein the body of the article comprises an antistatic agent dispersed throughout. 80. The article of claim 28, wherein the body of the article comprises an antistatic agent dispersed throughout. 81. The article of claim 29, wherein the body of the article comprises an antistatic agent dispersed throughout. 82. The article of claim 30, wherein the body of the article comprises an antistatic agent dispersed throughout. 83. The article of claim 31, wherein the body of the article comprises an antistatic agent dispersed throughout. 84. The article of claim 32, wherein the body of the article comprises an antistatic agent dispersed throughout. 85. The article of claim 33, wherein the body of the article comprises an antistatic agent dispersed throughout. 86. The article of claim 34, wherein the body of the article comprises an antistatic agent dispersed throughout. 87. The article of claim 35, wherein the body of the article comprises an antistatic agent dispersed throughout. 88. The article of claim 36, wherein the body of the article comprises an antistatic agent dispersed throughout. 89. The article of claim 37, wherein the body of the article comprises an antistatic agent dispersed throughout. 90. The article of claim 38, wherein the body of the article comprises an antistatic agent dispersed throughout. 91. The article of claim 39, wherein the body of the article comprises an antistatic agent dispersed throughout. 92. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 53 and 54
Articles described in paragraph 55 or paragraph 55. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 93. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 56 and 57
Articles described in paragraph 58 or paragraph 58. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 94. Pre-foaming by mixing an antistatic agent with the thermoplastic forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 59 and 60
Articles described in paragraph 61 or paragraph 61. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 95. Pre-foaming by mixing an antistatic agent with the thermoplastic making up the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 62 and 63
Articles described in paragraph 64 or paragraph 64. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 96. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 65 and 66
Articles described in paragraph 67 or paragraph 67. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 97. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 68 and 69
Articles described in paragraph 70 or paragraph 70. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 98. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 71 and 72
Articles described in paragraph 73 or paragraph 73. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 99. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 74 and 75
Articles described in paragraph 76 or paragraph 76. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 100, pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 77 and 7
Articles described in item 8 or item 79. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 101. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 80 and 8
Articles described in paragraph 1 or paragraph 82. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 102. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 83 and 8
Articles described in paragraph 4 or paragraph 85. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 103. Pre-foaming by mixing an antistatic agent with the thermoplastic material forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 86 and 8
Articles described in paragraph 7 or paragraph 88. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 104. Pre-foaming by mixing an antistatic agent with the thermoplastic forming the foamed thermoplastic forming beads and then mixing the bead material with a sufficient amount of the antistatic agent by either: Claims 89 and 9
Articles described in item 0 or item 91. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 105. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 53, 54 or 55
Articles listed in section. 106. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 56, 57 or 58
Articles listed in section. 107. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 59, 60 or 61
Articles listed in section. 108. A sufficient amount of liquid anti-static agent is injected into the steam sent to the mold cavity and evaporated, and the anti-static agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 62, 63 or 64
Articles listed in section. 109. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 65, 66 or 67
Articles listed in section. 110. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 68, 69 or 70
Articles listed in section. 111, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 71, 72 or 73
Articles listed in section. 112. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 74, 75 or 76
Articles listed in section. 113, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 77, 78 or 79
Articles listed in section. 114, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 80, 81 or 82
Articles listed in section. 115. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 83, 84 or 85
Articles listed in section. 116. A sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 86, 87 or 88
Articles listed in section. 117, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. Claim 89, 90 or 91
Articles listed in section. 118, Claim 53 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 54 or paragraph 55. 119, Claim 56 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 57 or paragraph 58. 120, Claim 59 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 60 or paragraph 61. 121, Claim 62 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
63 or 64. 122, Claim 65 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Articles according to paragraph 66 or paragraph 67. 123, Claim 68 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 69 or paragraph 70. 124, Claim 71 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 72 or paragraph 73. 125, Claim 74 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
75 or 76. 126, Claim 77 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 78 or paragraph 79. 127, Claim 80 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 81 or paragraph 82. 128, Claim 83 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 84 or paragraph 85. 129, Claim 86 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 87 or paragraph 88. 130, Claim 89 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
Article according to paragraph 90 or paragraph 91. 131, a thermoplastic substance, (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylate, (g) higher fatty acid ester of glycerol, (h) higher amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl sarcosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate ( (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil); (q) fatty acid ester of lactylate; , anionics, cationics, amphoteric surfactants or emulsifiers. 132, Claim 13, wherein the at least one antistatic agent or emulsifier comprises a fatty acid dialkylolamide
The combination described in item 1. 133. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises a higher fatty acid ester of polyglycerol. 134. The combination according to claim 131, wherein the at least one antistatic agent or emulsifier comprises a compound selected from lauryl ether sulfate or monoethanolamine lauryl sulfate. 135, Claim 1 in which the at least one antistatic agent or emulsifier comprises a higher alcohol ethoxylate
The combination according to item 31. 136, Claim 1 wherein at least one antistatic agent or emulsifier comprises a quaternized ethoxylated amine
The combination according to item 31. 137, Claim 1 in which at least one antistatic agent or emulsifier comprises a fatty acid ester ethoxylate
The combination according to item 31. 138. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises a higher fatty acid ester of glycerol. 139. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises a higher amine oxide. 140. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises an aliphatic sulfonate. 141. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises a citric acid ester of a monoglyceride. 142, at least one antistatic agent or emulsifier is 2-
Alkyl-1-[ethyl-betaoxypropionic acid]
- an imidazoline. 143, Claim 131, wherein the at least one antistatic agent or emulsifier comprises an alkyl dimethyl betaine.
Combinations listed in section. 144. The combination of claim 131, wherein the at least one antistatic agent or emulsifier comprises lauryl sarcosinate. 145. The combination of claim 131, wherein the at least one antistatic agent or emulsifier is a higher ethoxylate sorbitan ester of a higher fatty acid. 146. The combination of claim 131, wherein the at least one antistatic agent or emulsifier is castor oil ethoxylate. 147, Claim 13, wherein the at least one antistatic agent or emulsifier is a hydrogenated castor oil ethoxylate.
The combination described in item 1. 148, Claim 13, wherein the at least one antistatic agent or emulsifier is a fatty acid ester of lactylate.
The combination described in item 1. 149. The combination of claim 132, wherein the fatty acid dialkylolamide comprises lauric acid diethanolamide. 150. The combination of claim 132, wherein the fatty acid dialkylolamide comprises coconut diethanolamide. 151. The combination of claim 132, wherein the fatty acid dialkylolamide comprises myristic acid diethanolamide. 152. The combination of claim 132, wherein the fatty acid dialkylolamide comprises stearic acid diethanolamide. 153. The combination according to claim 133, wherein the higher fatty acid ester of polyglycerol comprises a polyglycerol ester of palmitic acid or stearic acid. 154. The combination of claim 134, wherein the compound consists of monoethanolamine lauryl sulfate. 155. The combination of claim 134, wherein the compound comprises lauryl ether sulfate. 156, Claim 13 in which the fatty acid ester ethoxylate comprises an unsaturated fatty acid ester ethoxylate
The combination described in item 7. 157. The combination of claim 137, wherein the fatty acid ester ethoxylate comprises polyethylene glycol monostearate. 158. The combination of claim 138, wherein the higher fatty acid ester of glycerol comprises glyceryl monostearate. 159. The combination of claim 145, wherein the higher elexylate sorbitan of higher fatty acids comprises polyoxyethylene sorbitan monostearate. 160. The combination of claim 148, wherein the fatty acid ester of lactylate comprises a lactylate ester of stearic acid or palmitic acid. 161, Claim 13, wherein the higher alcohol ethoxylate comprises an ethoxylate of oleyl alcohol
Combination according to item 5. 162. The combination of claim 135, wherein the higher alcohol ethoxylate is an ethoxylate of oleyl/cetyl alcohol. 163, Claim 1 wherein the quaternized ethoxylated amine comprises quaternized coconut amine ethoxylate
The combination according to item 36. 164, Claim 13 in which the fatty acid ester ethoxylate comprises polyethylene glycol monooleate
The combination described in item 7. 165. The combination of claim 139, wherein the higher amine oxide comprises cocoyl amine oxide. 166. The combination of claim 141, wherein the citric ester of a monoglyceride comprises a neutralized citric ester of a monoglyceride made from refined edible fats containing palmitic and stearic acids as the principal fatty acids. 167. The combination of claim 143, wherein the alkyldimethylbetaine comprises dodecyldimethylbetaine. 168. The combination of claim 144, wherein the lauryl sarcosinate comprises lauriol sarcosine. 169, fatty acid ester of laurylate is sodium-
149. The combination of claim 148 which is stearoyl-2-lactylate. 170. Claim 131, wherein the antistatic agent is mixed with the thermoplastic and then the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 132 or paragraph 133. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 171. Claim 134, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 135 or paragraph 136. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 172, claim 137, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 138 or 139. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 173, claim 140, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 141 or paragraph 142. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 174. Claim 143, wherein the antistatic agent is mixed with the thermoplastic and then the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 144 or paragraph 145. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 175. Claim 146, wherein the antistatic agent is mixed with the thermoplastic and the bead material is then prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 147 or paragraph 148. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent before injection into the prefoamer, and the mixture is then injected into a preheated prefoamer to prefoam the beads, and (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 176, claim 149, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 150 or paragraph 151. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 177, Claim 152, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 153 or paragraph 154. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 178, Claim 155, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 156 or paragraph 157. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 179, claim 158, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with either of the following: A combination according to paragraph 159 or paragraph 160. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 180. Claim 161, wherein the antistatic agent is mixed with the thermoplastic and then the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 162 or paragraph 163. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after pouring the preheated prefoamer heavies, mix the beads with an antistatic agent to prefoam the beads. 181. Claim 164, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 165 or paragraph 166. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent before injection into the prefoamer, and the mixture is then injected into a preheated prefoamer to prefoam the beads, and (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 182, claim 167, wherein the antistatic agent is mixed with the thermoplastic and the bead material is prefoamed by mixing a sufficient amount of the antistatic agent with any of the following: A combination according to paragraph 168 or 169. (i) the thermoplastic beads to be foamed are mixed with an antistatic agent prior to injection into the prefoamer and the mixture is then injected into a preheated prefoamer to prefoam the beads; or (ii) ) Immediately after injecting the beads into a preheated prefoamer, the beads are mixed with an antistatic agent to prefoam the beads. 183, Claim 13 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 1, paragraph 132 or paragraph 133. 184, Claim 13 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 4, paragraph 135 or paragraph 136. 185, Claim 13 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 7, paragraph 138 or paragraph 139. 186, Claim 14 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to item 0, item 141 or item 142. 187, Claim 14 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 3, paragraph 144 or paragraph 145. 188, Claim 14 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 6, paragraph 147 or paragraph 148. 189, Claim 14 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 9, paragraph 150 or paragraph 151. 190, Claim 15 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 2, paragraph 153 or paragraph 154. 191, Claim 15 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 5, paragraph 156 or paragraph 157. 192, Claim 15 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 8, paragraph 159 or paragraph 160. 193, Claim 16 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 1, paragraph 162 or paragraph 163. 194, Claim 16 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 4, paragraph 165 or paragraph 166. 195, Claim 16 comprising thermoplastic beads mixed with a sufficient amount of antistatic agent to coat the beads before foaming.
A combination according to paragraph 7, paragraph 168 or paragraph 169. No. 196, a patent claim comprising injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity and mixing the antistatic agent in the form of evaporation, mist or spray with the bead material to coat the foamed beads. A combination according to range 131, 132 or 133. No. 197, a patent claim comprising injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity and mixing the antistatic agent in the form of evaporation, mist or spray with the bead material to coat the foamed beads. A combination according to range 134, 135 or 136. No. 198, a patent claim comprising injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity and mixing the antistatic agent in the form of evaporation, mist or spray with the bead material to coat the foamed beads. A combination according to range 137, 138 or 139. No. 199, the patent claim comprises injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity to coat the foamed beads with the evaporated, misted or atomized antistatic agent mixed with the bead material. A combination according to range 140, 141 or 142. 200, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, mixing the antistatic agent with the bead material and coating the foamed beads. A combination according to range 143, 144 or 145. 201, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent in the form of a mist or spray with the bead material. A combination according to range 146, 147 or 148. 202, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent with the bead material in the form of a mist or spray. A combination according to range 149, 150 or 151. 203, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent with the bead material in the form of a mist or spray. A combination according to range 152, 153 or 154. 204, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent with the bead material in the form of a mist or spray. A combination according to ranges 155, 156 or 157. 205, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, mixing the antistatic agent with the bead material and coating the foamed beads. A combination according to range 158, 159 or 160. 206, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent with the bead material in the form of a mist or spray. A combination according to ranges 161, 162 or 163. 207, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, mixing the antistatic agent with the bead material and coating the foamed beads. A combination according to range 164, 165 or 166. 208, the foamed beads are coated by evaporating, misting or atomizing the antistatic agent by injecting a sufficient amount of liquid antistatic agent into the steam delivered to the mold cavity, and mixing the antistatic agent with the bead material in the form of a mist or spray. A combination according to range 167, 168 or 169. 209, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 131, 132 or 133. 210, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 134, 135 or 136. 211, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 137, 138 or 139. 212, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 140, 141 or 142. 213, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 143, 144 or 145. 214, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 146, 147 or 148. 215, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 149, 150 or 151. 216, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 152, 153 or 154. 217, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 155, 156 or 157. 218, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 158, 159 or 160. 219, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 161, 162 or 163. 220, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity, and the antistatic agent in the form of evaporation, mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 164, 165 or 166. 221, a sufficient amount of liquid antistatic agent is injected into the steam sent to the mold cavity and evaporated, and the antistatic agent in the form of a mist or spray is mixed with the pre-foamed beads to coat the foamed beads. A combination according to claim 167, 168 or 169. 222, in the method of compounding an antistatic agent and pre-foamed thermoplastic beads used in the manufacture of a foamed thermoplastic article or a foamed thermoplastic material molded into the shape of an antistatic article, The electrostatic agent is suitable for use with food products and a sufficient amount is a) mixed with the thermoplastic beads to be foamed prior to injection into the prefoamer; or b) beads in a preheated prefoamer immediately after injecting the beads into a preheated prefoamer for prefoaming of the beads. or c) mixed by liquid delivery with steam into the molding cavity of the molding machine for internal mixing with the pre-foamed beads for molding into the final article, with a preheated environment. A compounding method characterized in that upon contact, the antistatic agent is misted, atomized, and/or vaporized to fill the environmental space, uniformly coating the beads, and imparting antistatic properties to the substance. 223, if the antistatic agent is in a solid state and melts at or below room temperature or ambient temperature, the claim also includes the step of holding the solid at a temperature below its melting point until it becomes tacky until heated. The method according to item 222. 224, Claim 2 in which the antistatic agent is in a solid state
The method according to item 22. 225, Claim 2 in which the antistatic agent is in a liquid state
The method according to item 22. 226, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
The method according to item 22. 227, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
The method described in Section 23. 228, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
The method described in Section 24. 229, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
The method according to item 25. 230, with the addition of an antistatic agent in an amount of about 0.1% or more by weight of the beads to be expanded, Claim 222
The method described in section. 231. The method of claim 222, wherein an antistatic agent is added in an amount up to about 5% by weight of the beads being expanded. 232, with the addition of an antistatic agent in an amount of about 0.1% or more by weight of the beads to be foamed, Claim 226
The method described in section. 233, the method of claim 226, wherein an antistatic agent is added in an amount up to about 5% by weight of the beads being expanded. 234. The method of claim 226, wherein the antistatic agent or emulsifier comprises a fatty acid dialkylolamide. 235. The method of claim 232, wherein the antistatic agent or emulsifier comprises a fatty acid dialkylolamide. 236. The method of claim 233, wherein the antistatic agent or emulsifier comprises a fatty acid dialkylolamide. 237. The method of claim 226, wherein the antistatic agent comprises a higher fatty acid ester of polyglycerol. 238. The method of claim 232, wherein the antistatic agent comprises a higher fatty acid ester of polyglycerol. 239. The method of claim 233, wherein the antistatic agent comprises a higher fatty acid ester of polyglycerol. 240. The method of claim 226, wherein the antistatic agent comprises a compound selected from monoethanolamine lauryl sulfate and lauryl ether sulfate. 241. The method of claim 232, wherein the antistatic agent comprises a compound selected from monoethanolamine lauryl sulfate and lauryl ether sulfate. 242. The method of claim 233, wherein the antistatic agent comprises a compound selected from monoethanolamine lauryl sulfate and lauryl ether sulfate. 243. The method of claim 226, wherein the antistatic agent comprises a higher alcohol ethoxylate. 244. The method of claim 232, wherein the antistatic agent comprises a higher alcohol ethoxylate. 245. The method of claim 233, wherein the antistatic agent comprises a higher alcohol ethoxylate. 246. The method of claim 226, wherein the antistatic agent comprises a quaternized ethoxylated amine. 247. The method of claim 232, wherein the antistatic agent comprises a quaternized ethoxylated amine. 248. The method of claim 233, wherein the antistatic agent comprises a quaternized ethoxylated amine. 249. The method of claim 226, wherein the antistatic agent comprises a fatty acid ester ethoxylate. 250. The method of claim 232, wherein the antistatic agent comprises a fatty acid ester ethoxylate. 251. The method of claim 233, wherein the antistatic agent comprises a fatty acid ester ethoxylate. 252. The method of claim 226, wherein the antistatic agent comprises a higher fatty acid ester of glycerol. 253. The method of claim 232, wherein the antistatic agent comprises a higher fatty acid ester of glycerol. 254. The method of claim 233, wherein the antistatic agent comprises a higher fatty acid ester of glycerol. 255. The method of claim 226, wherein the antistatic agent comprises a higher amine oxide. 256. The method of claim 232, wherein the antistatic agent comprises a higher amine oxide. 257. The method of claim 233, wherein the antistatic agent comprises a higher amine oxide. 258. The method of claim 226, wherein the antistatic agent comprises an aliphatic sulfonate. 259. The method of claim 232, wherein the antistatic agent comprises an aliphatic sulfonate. 260. The method of claim 233, wherein the antistatic agent comprises an aliphatic sulfonate. 261. The method of claim 226, wherein the antistatic agent comprises a citric ester of a monoglyceride. 262. The method of claim 232, wherein the antistatic agent comprises a citric ester of a monoglyceride. 263. The method of claim 233, wherein the antistatic agent comprises a citric ester of a monoglyceride. 264. The method of claim 226, wherein the antistatic agent comprises 2-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline. 265. The method of claim 232, wherein the antistatic agent comprises 2-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline. 266. The method of claim 233, wherein the antistatic agent comprises 2-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline. 267. The method of claim 226, wherein the antistatic agent comprises an alkyl dimethyl betaine. 268. The method of claim 232, wherein the antistatic agent comprises an alkyl dimethyl betaine. 269. The method of claim 233, wherein the antistatic agent comprises an alkyl dimethyl betaine. 270. The method of claim 226, wherein the antistatic agent comprises lauryl zacosinate. 271. The method of claim 232, wherein the antistatic agent comprises lauryl zacosinate. 272. The method of claim 233, wherein the antistatic agent comprises lauryl zacosinate. 273. The method of claim 226, wherein the antistatic agent comprises a higher ethoxylate sorbitan ester of a higher fatty acid. 274. The method of claim 232, wherein the antistatic agent comprises a higher ethoxylate sorbitan ester of a higher fatty acid. 275. The method of claim 233, wherein the antistatic agent comprises a higher ethoxylate sorbitan ester of a higher fatty acid. 276. The method of claim 226, wherein the antistatic agent comprises castor oil ethoxylate. 277. The method of claim 232, wherein the antistatic agent comprises castor oil ethoxylate. 278. The method of claim 233, wherein the antistatic agent comprises castor oil ethoxylate. 279. The method of claim 226, wherein the antistatic agent comprises hydrogenated castor oil ethoxylate. 280. The method of claim 232, wherein the antistatic agent comprises hydrogenated castor oil ethoxylate. 281. The method of claim 233, wherein the antistatic agent comprises hydrogenated castor oil ethoxylate. 282. The method of claim 226, wherein the antistatic agent comprises a fatty acid ester of lactylate. 283. The method of claim 232, wherein the antistatic agent comprises a fatty acid ester of lactylate. 284. The method of claim 233, wherein the antistatic agent comprises a fatty acid ester of lactylate. 285, Claims 234, 235, or 236, wherein the fatty acid dialkylolamide is a compound selected from Laurick dialkylolamide, coconut diethanolamide, myristic diethanolamide, and stearic diethanolamide. The method described in. 286. The method according to claim 237, 238 or 239, wherein the higher fatty acid ester of polyglycerol comprises a polyglycerol ester of palmitic acid or stearic acid. 287. The method of claim 243, 244 or 245, wherein the higher alcohol ethoxylate comprises a compound selected from ethoxylates of oleyl alcohol and ethoxylates of oleyl/cetyl alcohol. 288, Claim 2 in which the quaternized ethoxylated amine comprises a quaternized coconut oil amine ethoxylate
49, 250 or 251. 289, Claim 252, 253 or 25, wherein the fatty acid ester ethoxylate comprises polyethylene glycol monostearate or polyethylene monooleate.
The method described in Section 4. 290, Claim 252, wherein the higher fatty acid ester of glycerol comprises glyceryl monostearate;
The method according to paragraph 253 or 254. 291, Claims 257, 258 or 25 in which the higher amine oxide comprises cocoyl amine oxide
The method described in Section 9. 292, Claim 261, wherein the citric ester of a monoglyceride comprises a neutralized citric ester of a monoglyceride produced from an edible purified hydrogenated fat whose main fatty acids are palmitic acid and stearic acid.
, 262 or 263. 293, the method of claim 267, 268 or 269, wherein the alkyldimethylbetaine comprises dodecyldimethylbetaine. 294, the method of claim 270, 271 or 272, wherein the lauryl zacosinate comprises lauroyl zacosine. 295, Claim 273, 274 or 275 in which the higher ethoxylate sorbitan ester of higher fatty acid comprises polyoxyethylene sorbitan monostearate
The method described in section. 296, fatty acid ester of lactylate is sodium-
285. The method of claim 282, 283 or 284 comprising steroyl-2-lactylate. 297, after mixing a sufficient amount of the antistatic agent with the thermoplastic bead material to be used with the food product and a) the thermoplastic beads to be foamed prior to injection into the prefoamer, the formulation is b) injecting the beads into a preheated prefoamer for prefoaming; or b) mixing with the beads in the prefoamer immediately after injecting the beads into a preheated prefoamer for prefoaming of the beads. mosquito,
or c) mixed by liquid delivery with steam into the molding cavity of the molding machine for internal mixing with the pre-foamed beads for molding into the final article, with anti-static properties caused by contact with the preheated environment. produced by a method that also includes a compounding step characterized in that the agent is misted, atomized and/or vaporized to fill the environmental space, uniformly coating the beads and imparting antistatic properties to the material. An antistatic article comprising a foamed thermoplastic suitable for use with food and at least one antistatic agent. 298, if the antistatic agent is in the solid state and melts below room or ambient temperature, the claim also includes the step of holding the solid at a temperature below its melting point until it becomes tacky until heated. Antistatic article according to Scope 297. 299, Claim 297, wherein the agent is in a solid state
Antistatic article described in Section 1. 300, Claim 297, wherein the agent is in a liquid state
Antistatic article described in Section 1. 301. The antistatic article of claim 297, wherein the antistatic article comprises a cup or container. 302. The anti-static article of claim 298, 299 or 300, wherein the anti-static article comprises a cup or container. 303, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
Antistatic article according to item 97. 304, the antistatic agent is (a) fatty acid dialkylolamide, (b) higher fatty acid ester of polyglycerol, (c)
(i) Monoethanolamine lauryl sulfate, (
c) (ii) lauryl ether sulfate, (d) higher alcohol ethoxylate, (e) quaternized ethoxylated amine, (f) fatty acid ester ethoxylated amine, (g) higher fatty acid ester of glycerol, (h) higher Amine oxide, (i) aliphatic sulfonate, (j) citric acid ester of monoglyceride, (k) 2
-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline, (l) alkyl dimethyl betaine, (m) lauryl zacosinate, (n) higher ethoxylate sorbitan ester of higher fatty acids, (o) castor oil ethoxylate (ethoxyl (p) hydrogenated castor oil ethoxylate (ethoxylated hydrogenated castor oil) (q) fatty acid ester of lactylate
Antistatic article according to item 97. 305, an antistatic article in which the agent is added in an amount of about 0.1% or more by weight of the beads to be foamed. 306, the antistatic article of claim 303, wherein the agent is added in an amount up to about 5% by weight of the beads to be foamed. 307. The antistatic article of claim 304, wherein the agent is added in an amount of about 0.1% or more by weight of the beads to be foamed. 308, antistatic articles containing the agent in an amount up to about 5% by weight of the beads to be foamed. 309. The antistatic article of claim 304, wherein the antistatic agent comprises a fatty acid dialkylolamide. 310. The antistatic article of claim 304, wherein the antistatic agent comprises a fatty acid dialkylolamide. 311. The antistatic article according to claim 304, wherein the antistatic agent comprises a higher fatty acid ester of polyglycerol. 312. The antistatic article of claim 304, wherein the antistatic agent comprises a compound selected from monoethanolamine lauryl sulfate and lauryl ether sulfate. 313. The antistatic article of claim 304, wherein the antistatic agent comprises a higher alcohol ethoxylate. 314. The antistatic article of claim 304, wherein the antistatic agent comprises a quaternized ethoxylated amine. 315. The antistatic article of claim 304, wherein the antistatic agent comprises a fatty acid ester ethoxylate. 316. The antistatic article of claim 304, wherein the antistatic agent comprises a higher fatty acid ester of glycerol. 317. The antistatic article of claim 304, wherein the antistatic agent comprises a higher amine oxide. 318. The antistatic article of claim 304, wherein the antistatic agent comprises an aliphatic sulfonate. 319. The antistatic article of claim 304, wherein the antistatic agent comprises a citric acid ester of a monoglyceride. 320. The antistatic article of claim 304, wherein the antistatic agent comprises 2-alkyl-1-[ethyl-betaoxypropionic acid]-imidazoline. 321. The antistatic article of claim 304, wherein the antistatic agent comprises an alkyl dimethyl betaine. 322. The antistatic article of claim 304, wherein the antistatic agent comprises lauryl zacosinate. 323. The antistatic article of claim 304, wherein the antistatic agent comprises a higher ethoxylate sorbitan ester of a higher fatty acid. 324. The antistatic article of claim 304, wherein the antistatic agent comprises castor oil ethoxylate. 325. The antistatic article of claim 304, wherein the antistatic agent comprises hydrogenated castor oil ethoxylate. 326. The antistatic article of claim 304, wherein the antistatic agent comprises a fatty acid ester of lactylate. 327, wherein the fatty acid dialkylolamide is a compound selected from Laurick dialkylolamide, coconut diethanolamide, myristic diethanolamide, and stearic diethanolamide. Electrical goods. 328. The antistatic article according to claim 313, wherein the higher fatty acid ester of polyglycerol comprises a polyglycerol ester of palmitic acid or stearic acid. 329. The antistatic article of claim 315, wherein the higher alcohol ethoxylate comprises a compound selected from ethoxylates of oleyl alcohol and ethoxylates of oleyl/cetyl alcohol. 330, Claim 3 in which the quaternized ethoxylated amine comprises a quaternized coconut oil amine ethoxylate
The antistatic article according to item 16. 331, Claim 31, wherein the fatty acid ester ethoxylate comprises an unsaturated fatty acid ester ethoxylate.
Antistatic article according to item 7. 332, the antistatic article according to claim 317, wherein the higher fatty acid ester of glycerol comprises a compound selected from polyethylene glycol monostearate, glyceryl monostearate, polyethylene glycol monostearate, and polyethylene glycol monooleate. . 333, the antistatic article of claim 319, wherein the higher amine oxide comprises cocoyl amine oxide. 334, Claim 321, wherein the citric acid ester of a monoglyceride comprises a neutralized citric acid ester of a monoglyceride produced from an edible purified hydrogenated fat whose main fatty acids are palmitic acid and stearic acid.
Antistatic article described in Section 1. 335. The antistatic article of claim 323, wherein the alkyldimethylbetaine comprises dodecyldimethylbetaine. 336, the antistatic article of claim 324, wherein the lauryl zacosinate comprises lauroyl zacosine. 337, the antistatic article of claim 325, wherein the higher ethoxylate sorbitan ester of higher fatty acid comprises polyoxyethylene sorbitan monostearate. 338, fatty acid ester of lactylate is sodium-
336. The antistatic article of claim 335 comprising sterolyl-2-lactylate.