JPS63218765A - Composition trapped by lattice - 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 Field of Industrial Application The present invention relates to functional materials (functional mats).
The present invention relates to compositions in which the polymer lattice is trapped in the lattice of a crosslinked hydrophobic polymer during in situ polymerization of the monomers forming the polymer lattice. In particular, the present invention relates to comb-like polymers that have the ability to trap and release various chemical materials in a sustained manner. Note that "trapped by the grid" means "caught by the grid."

BACKGROUND OF THE INVENTION In this technical field, encapsulation has traditionally been used.
-Iation), numerous attempts have been made to obtain functional materials that can be released on demand.

Encapsulation involves entrapping material into discrete units or capsules by covering particles of the material with an encapsulant. The coatings or encapsulant materials used for encapsulation include natural or synthetic polymers that allow the functional material to be released by fragmentation, degradation, or diffusion.

Daniel M., quoted here as part of the explanation.

Mar+1ion+ A. Wile, published by Interscience Publications, 1984, No. 2
The American Food, Drug, and Cosmetic Colorants Handbook discloses food flavorings and pigments that can be used in the present invention.

Also cited as part of the explanation are ``Insecticides: Preparation and Use'' by R. Cremlyn, published in 1978, published by Ginn, Wiley & Sons Publications, Inc., and ``Pesticides: Preparation and Use'' by J. Keller of Neenah, 3sconsin. "Insecticide Guide: Registration, Classification and Applications" published by & Associates, Inc., 1984, discloses various insecticides and insect attractants that can be utilized in the present invention.

The present invention aims to provide a novel aspect of trapping rather than encapsulating functional materials.

The present invention provides a unique combination of polymers and functional materials that are obtained by being dispersed in and trapped within a polymeric lattice rather than being encapsulated by a coating material. These compositions are useful for incorporating various functional materials into various products, such as cosmetic and non-cosmetic products. Furthermore, the amount of functional material trapped in the lattice is much higher than that due to the encapsulation described above.

The invention will be clearly understood with reference to the detailed description and drawings below.

DESCRIPTION OF THE INVENTION The present invention comprises about 5 to 95% by weight cross-linked polymer lattice;
A solid lattice trap composition comprising 95 to 5% by weight of functional material. Unlike known methods of trapping functional materials by encapsulation, the present invention traps functional materials directly into the hydrophobic polymer lattice during in situ polymerization of monomers.

It has been discovered that various materials, liquid or solid, can be converted into free-flowing powders or beads by entrapment of the material in a polymer lattice. The materials to be trapped are not themselves encapsulated, eg, by a capsule, coating, or surface film; they are dispersed within and trapped within the polymer lattice. Such lattice trap products have superior properties over encapsulated products obtained from the prior art. The polymer lattice acts to retain and protect the entrapment material without encapsulating it, perhaps by adsorption or swelling, and the lattice can make the material available through various mechanisms such as pressure, diffusion, extraction, etc. Importantly, when the lattice-trapping material of the present invention is included in cosmetic, non-cosmetic, and facial cleansing products, the polymer lattice itself contributes beneficial effects to the structure of all products. That's true. Depending on the structure of the system or the chemical properties of the system, heterogeneous or homogeneous traps are possible. If the chemical material to be trapped is a thermodynamically good solvent (swelling agent) in the system, a homogeneous (gel) trap will be obtained; conversely, if the chemical material is a thermodynamically poor solvent If so, layer separation would occur during polymerization and a heterogeneous (macromolecule) trap would be obtained.

Homogeneous or heterogeneous traps naturally depend on the structure and the amount of crosslinking agent; high crosslinking densities produce heterogeneous products.

The present invention also provides a softening agent (esoll) in the polymer lattice.
Although lattice trapping in situ in the moisturizer is also shown, it is understood that a variety of other functional materials can be trapped in the polymer lattice, alone or in combination with emollients or moisturizers. The present invention, as will be understood by those skilled in the art, contemplates the incorporation of various water-insoluble organic liquids or solids into the lattice. In fact, any functional material that does not chemically react with the polymer system comprising the polymer lattice can be trapped in the polymer lattice.

The non-encapsulated solid lattice trap compositions of the present invention are characterized by functional cross-linking (cross-linking).
ng) Monomer, monofunctional group
al) produced by one-step mixing of the monomer and the functional material to be trapped in the lattice under conditions such that polymerization subsequently occurs. As used herein, "functional crosslinking monomer" refers to 2(DI) or poly(PO) having two or more polymerizable double bonds.
LY) contains a functional group monomer, and "monofunctional group monomer" means a monomer having one polymerizable double bond. It may be a polyunsaturated monomer selected from the group consisting of alcohols of diesters and α-β unsaturated carboxylic acids, such as polyunsaturated polyvinyl ethers of polyhydroxy alcohols,
Polyunsaturated amides or cycloaliphatic esters of α-β unsaturated carboxylic acids. Examples of such functional crosslinking monomers include polyethylene glycol methacrylate with a molecular weight up to about 5000, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, and triacrylate available under the trademark CHEML IMK 176. Methylolpropane ethoxylate, propylene with a molecular weight of up to about 5000 consisting of propylene glycol dimethacrylate, dipropylene, higher propylene glycol, 1.3-butylene glycol dimethacrylate, 1.4-butanediol dimethacrylate, l. 6 hexanediol, neopentyl glycol dimethacrylate, pentaerythritol dimethacrylate, bisphenol A1 divinyl dimethacrylate (
trivinyl)benzene, divinyl(trivinyl)toluene, triallyl maleate, triallyl phosphate, diallyl maleate, diallyl itaconate, and allyl methacrylate.

The monofunctional monomers of the novel polymer system of the present invention include hydrophobic or hydrophilic monounsaturated monomers, the monomers being methacrylates having linear or branched alkyl groups having from 1 to 30 carbon atoms. acid or acrylic acid, preferably having 5 to 18 carbon atoms,
Preferred monofunctional monomers include lauryl methacrylate, 2-ethylhexyl methacrylate, isodecyl methacrylate, stearyl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, diacetone acrylamide, phenoxyethyl methacrylate, tetrahydrofurfuryl methacrylate, and methacrylate. methoxyethyl acid.

The structure of crosslinked polymers is characterized by a layered arrangement of side chains.

Side chains separated from the main chain overlap in parallel layers.

The main chains of the polymer are spaced approximately the same length as the side chains.

In addition to other factors, crosslinking of the backbone and side chains can change the conformational freedom at the side chain junction. Polyalphaolefins have no conformational freedom for side chain segments around the C-C bond, whereas polyacrylic acids and polyvinylethers have greater freedom for the C-0 bond. The rotational freedom of polymethacrylic acid is limited by the stearinance of the methyl groups in the backbone.

The functional material lattice-trapped in the novel polymer lattice of the present invention is typically selected from liquid or solid materials. Insecticidal side including R agent', fragrance, pheromone, synthetic insect attractant, larval hormone 11 members,
Herbicides, chemicals, antibacterial substances, sun protection, light stabilizers (Li
Functional materials such as flavorants, including ght 5tabHizers), sweeteners, etc., are entrapped within the novel polymer lattice of the present invention.

The crosslinking monomer, monofunctional monomer, and functional material are combined so that the resulting novel lattice trap composition of the present invention has a
~95% by weight crosslinked polymer lattice and about 95-5% by weight
of trapped functional materials. The ratio of crosslinking monomers to monofunctional monomers in the crosslinked polymer lattice can vary within the range of 99:1 to 1:99. Although the invention is not limited to any particular formulation, the In a typical product, the ratio of crosslinking monomers to monofunctional monomers is such that about 60 to 80% by weight of the functional material is trapped therein to obtain a novel crosslinked polymer lattice.

Cross-linked polymer lattices containing entrapped functional materials
It is obtained by in situ polymerization of a monomer mixture in which the functional material is entrapped. Generally, this is done by mixing a crosslinking monomer and a monofunctional monomer, dissolving the functional material into the mixed monomers to form a homogeneous mixture, and then allowing polymerization to occur. Primary initiators such as oxides or the like, or irradiation
ation), or which may be induced by a redox system, typically at temperatures from 0°C to 120'C,
The time and temperature of the polymerization, which preferably occurs at about 80°C, may be varied according to the nature of the functional material, its concentration, and the properties of the desired trapping system; however, in all cases, the polymerization Occurs only after compounding of synthetic materials.

The physical properties of functional materials entrapped in the lattice are influenced by various factors, such as the exact blend of cross-linking monomers and monofunctional monomers selected, and the ratio of these monomers to the functional material. It is something. Therefore, if the lattice trapping material of the present invention were present in the form of a discrete, free-flowing powder, the beads would be stiff and resistant to significant shear; Alternatively, the beads are soft and in that form disperse or spread to form a uniform layer with minimal pressure. Generally, the higher the ratio of crosslinked polymer lattice to functional material, the stiffer the lattice trapping material.

The lattice trap functional material also ranges in particle size from about 0.001 m5 to about 3-1.

A simple test was developed to predict with a reasonable degree of certainty whether a particular formulation of crosslinking monomer, monofunctional monomer, and functional material will polymerize to form the lattice trap functional material of the present invention.

According to this test, approximately the same amount of crosslinking monomer, monofunctional monomer, and one functional material were mixed into a test tube and allowed to polymerize. If the obtained polymerized product is turbid or turbid, a heterogeneous macroporous structure is formed;
It clearly shows that the tested compositions were formulated in such proportions that by polymerization the products of the invention could be obtained. There are exceptions to this general rule, and some formulations of materials can result in transparent polymer products. However, if the clear polymer appeared cloudy or turbid when extracted from the reaction mixture, indicating a heterogeneous macroporous structure, the confirmatory test was again performed. After a confirmation test, i.e., if turbidity or turbidity is initially observed in the polymerization of test tube size samples, in order to know the extent to which separated particles, i.e., not aggregates, are obtained in the polymerization, Further tests were carried out by varying the ratio of monomer to functional material. Bearing in mind the foregoing tests and recognizing the need to obtain discrete particles rather than aggregated or clumped polymers, one skilled in the art will be able to incorporate suitable crosslinking monomers and monofunctional monomers to obtain the lattice trapping materials of the present invention. You will find that you can choose and define your formulation.

The novel lattice trap functional materials of the present invention are versatile products that can be applied to many different quiz products. As mentioned above, liquid or solid functional products include various health-related products, pesticides, insect attractants, antibacterial substances, drugs, pesticides,
The lattice trap material of the present invention forms a functional material product suitable for use in disinfectants, sunscreens, light stabilizers, flavors, pigments, and perfumes. It can be used as a functional material inside.

A first advantage of forming the novel lattice-trapped functional materials of the present invention is that liquid or solid functional materials can be converted into free-flowing powders by incorporating them into polymer lattices without syneresis. The 0-functional material lattice trap has the property of retaining the functional material until use, if necessary.
Other advantages of the functional material lattice traps of the present invention include:
Yet another advantage of the present invention is that the polymer lattice has the property of converting solid or liquid functional materials into free-flowing discrete particles, ranging in size from fine powders to larger beads. It lies in the fact that when trapped it contributes to favorable properties (discussed below).

The lattice trap functional materials of the present invention are easy to handle, convenient to store, and can be manufactured by relatively uncomplicated operations. Lattice traps of the functional material in the crosslinked polymer lattice protect it from ambient conditions and excessive evaporation or UV radiation. The functional material trapped in the lattice can be released from the trapped state in the fine lattice by extraction or diffusion from the trapped state by applying pressure or by changing temperature or humidity.

It has also been found that the desirable properties of lattice-trapped functional materials, such as emollients and moisturizers, are enhanced by the polymer lattice itself. When applied to a surface, the polymer lattice becomes a continuous film. The ultimate effect of the lattice encapsulant of the present invention is to further extend the benefits of lattice trapping materials.

A decisive advantage obtained by trapping functional materials according to the present invention is that the functional materials can be incorporated into the desired product without lattice trapping, rather than containing the functional materials in the raw material. Emollients such as 2-hexyl oxystearate (WICKENOL 171), resulting from the fact that they can be included in substantially higher amounts, impart improved moisturizing and emollient properties to facial soaps. is known, but
It is not possible to include more than 2 to 5% of such emollients in the composition of conventional facial cleansing soaps without severely reducing the sudsing properties of the soap. However, up to 20% by weight of emollients can be included in facial soap formulations if the emollients are first incorporated into the fine polymer lattice trapping the lattice. by this,
The softening properties and moisturizing properties of soap can be enhanced without reducing the soap's foaming properties or cosmetic properties. The polymer portion of the grid also improves the structural properties of the soap.

Important application areas for the novel lattice-trapped functional materials of the present invention are typically in sweat suppressants, deodorants, lipsticks, sunscreens, topical drugs, insect repellents, colognes, etc. Used in the field of kudzu, molded wax and/or oil based sticks. Typically, these stick-type products must have a balance of many ingredients to achieve the desired appearance and function, but these products suffer from shrinkage, changes in adhesion, and stickiness. Optimal wax-oil based solid sticks appear to be difficult to address due to issues such as the lattice-trap functional materials of the present invention typically present in stick products (natural or bodying agents (such as vegetable or insect waxes)
These effects have a significant effect on such stick-type products because the polymer lattice trapping the functional material can substantially reduce the amount of the functional material trapped in the lattice. This is due to the fact that it increases the hardness and strength of the stick while allowing it to produce the desired efficacy.

The lattice trap functional material of the present invention is a free-flowing powder that is easy to handle and convenient to store. The lattice trap functional material can be made available or released when used directly or as an ingredient in a product. When applied as a cosmetic or facial cleansing product on the surface of the skin, the trapped functional material is released as a result of rubbing and stretching in a continuous, uniform film form protected in a hydrophobic surface film. It seems likely that

To better understand how functional materials are trapped in polymer lattices, scanning electron microscopy (SE
A study was conducted by M. The purpose of this discussion is to determine the miscibility, or specific miscibility (im*1s
cible) to understand how functional materials are incorporated into polymer lattices differently. Additionally, this study also presented a comparison of the lattice trap product before and after a simulated application.

1a to 1d are micrographs of 2-ethylexyl oxystearate/polymer powder (POLYTRAP 171) trapped in polymer powder. Micrographs are taken at 20x (Fig. 1a) and 350x (Fig. 1b).
Figure), 940x (Figure 10), 3000x (Figure 1d)
It was photographed in

The photographs show that the ester is heterogeneously wedged on the surface of very fine polymer microdispersions smaller than 2 microns in diameter. At higher magnifications, it can be seen that the functional material is trapped within the polymer lattice rather than being encapsulated by the polymer.

Figures 28-2d show examples of lattice trap functional material products in an applied and stretched state, such as when applied directly to a surface.

In this series of photos, the material is POLYTRAP 171. Figure 2a is an unaltered photograph of the lattice trap product. FIG. 2b (1000x magnification) shows a slightly stretched grid-trapped film-like material product. Figure 2c (1000x magnification) shows the lattice-trapped film-like material product after it has been further fully stretched, also showing the continuous film-like product. Figure 2d (<15,000x) shows a larger magnification of the same product material as Figure 2C. It can be seen from Figure 2d that the film consists of particles smaller than 2 microns.

Figures 38-3d are micrographs of a lattice-trapped functional material product showing the inclusion of fragrance as the lattice-trapped functional material. Here, fragrance
) are the morphology of POLYTRAP fragrance polymer beads. Various photographs are taken at magnifications of 540x (Figure 3a) and 200x.
0x (Figure 3b), 3000x (Figure 3c), 1000x
Photographs were taken at a magnification of 0x (Fig. 3d). The perfume is homogeneously miscible in the polymer and is therefore very homogeneously distributed in the polymer lattice. This is easily seen by comparing Figure 3c, taken at 3000x, and Figure 1d, taken at the same magnification but containing the immiscible functional material in the polymer lattice. It will be seen that when the perfume is homogeneously miscible with the polymer, a smooth surface with few features is produced.

Figure 4a shows a lattice trap functional material product (POLYTRAP 171) according to the invention at 3000x magnification. The same product is shown in Figure 4b. However, the lattice-trapped softener is extracted therefrom. Figure 4c shows functional materials (POLYTRAP■
235) and simply consist of blank polymer beads. 4th b+
Figure 4c is very revealing.

These various scanning electron microscopy examinations of the lattice trap system of the present invention demonstrate the effect that the trapped embodiment has on the physical properties of the polymer structure. moreover,
The photograph shows that the functional material is not encapsulated by the polymer, but is trapped in the polymer lattice. If the functional material is miscible with the polymer (e.g. perfume), the structure A homogeneous polymer lattice is formed that creates structurally strong spheres, or beads, that can be crushed without disrupting their integrity. If the material is insoluble in the polymer, a heterogeneous internal structure is formed.

The mass of beads formed by miscible or immiscible functional materials is fragile and when a mechanical force is applied to it, the mass is broken and the mass is smaller than 2 microns, 0.
It forms a continuous film with particle sizes approaching 1 to 0.2 microns.

While it will be apparent to those skilled in the art that many variations in operating procedures and compositions may be made, the invention is illustrated by the following examples.

Example 1 7 grams of 2-ethylhexyl sulfoxystearate (W
ICKENOL 171) was added to a glass test tube along with 1.5 grams of ethylene glycol dimethacrylate and 1.5 grams of lauryl methacrylate. The solution was exposed to air for 5 minutes and 0.1 ml of t-
Butylberoctorate was added and mixed while heating to 80°C in an oil bath. After 20 minutes, the contents solidified. The mixture was maintained at 80° C. for an additional hour to ensure sufficient polymerization. A rather soft, heterogeneous, cloudy mass of polymer containing trapped ester was obtained.

The following examples demonstrate a primary screening of these materials to see if the combination of crosslinking monomers, monofunctional monomers, and one functional material will form the novel lattice trap products of this invention. In each test, the compositions were mixed in a test tube and polymerization was initiated and completed. In test tube scale tests, the formation of cloudy polymer masses indicates that large scale polymerizations can also be used to form the entrapped functional materials of the present invention.

Example 2 Following the scratching procedure of Example 1, tetraethylene glycol dimethacrylate, trimethylol trimethacrylate-probando, trimethylol dimethacrylate-propane ethoxy, allyl methacrylate, crosslinking monomer 7
Polymerization was carried out in the presence of 0% by weight of 2-ethylhexyl oxyl stearate and 15% by weight of lauryl methacrylate. In each case a slightly soft cloudy mass of polymer was obtained. This demonstrates the dimensional stability of the lattice trap product of the present invention. Such polymer lattices are suitable for trapping pharmaceutical formulations such as wheat germ glycerides for skin treatment, or sun protection formulations containing benzoic acid P-amide and its derivatives.

Example 3 In vitro polymerizations were carried out according to the procedure of Example 1, varying the monomer components and their ratios, and the amount and type of functional material entrapped. In such an example, t
-butyl peroctoate
oate) is used to initiate the polymerization at a constant content of 3% by weight, based on the combined weight of monomer and functional material. &11 products, amounts and test tube results are shown in Table 1 Zero-order abbreviations are used in Table 1.

TEGDM Tetraethylene glycol dimethacrylate TMPTM ) Trimethylpropane dimethacrylate EGDM Ethylene glycol dimethacrylate TPETM Trimethylolpropane ethoxylate trimethacrylate LMA Lauryl methacrylate IMA
Isodecyl methacrylate HMA Hydroxyethyl methacrylate DAA Diacetone acrylamide PMA
Phenoxyethyl methacrylate MEMA Methoxyethyl methacrylate Any of a wide variety of water-insoluble liquids or solids can be used as the functional material in the tests described above. These functional materials include insecticides, pesticides, sun protection, light stabilizers, pigments, food flavorings, pheromones, synthetic attractants, chemicals, etc. alone, or, for example, ethanol, petroleum spirits, propylene glycol, etc. These and similar can be used in non-aqueous solvents.

A synthetic attractant suitable as an insect repellent product is 1,1-dimethyl-4(or 5)-chloro-2-methylcycloexane-1-carbooxylate (trimedlua).
sedlure), Medlure (sedJure),
Sigrua (51g1ure), butyl sorbate (sorbate), cue-1ure
), methyleugenol, and the like. The materials containing the suffix "lure" are trade names for pheromones.

The following examples demonstrate the construction of lattice trapping materials of the present invention.

Example 4 Dan River Inc.
1.20 grams of polyvinylpyrrolidone (pyrrol) with a value of about 80 to 100
i-done) has a stirrer and a temperature needle.
A three-necked resin flask was purged with nitrogen and dissolved in 1500 milliliters of water. 335 grams of 2-ethylexyl oxystearate (WICKENOL 171
), 132 grams of ethylene glycol dimethacrylate, 33 grams of 2-ethylhexyl methacrylate, and 5 milliliters of butyl peroctoate were bubbled with nitrogen for 5 minutes. The monomer mixture obtained here was slowly added to a stirred aqueous solution of polyvinylpyrrolidone at 22° C. under nitrogen. The temperature was increased to 8 with constant stirring.
The temperature was raised to 0° C. and held there until polymerization began within approximately 15 minutes and left at 80° C. for an additional 2 hours to complete the reaction. Slightly soft, cloudy beads were collected with excess liquid removed by filtration and excess moisture removed by drying. The beads weigh 450 grams at 90% collection rate, have a diameter of 0.25 to 0.5 mm, and are coated with other protective colloids such as IL powder, polyvinyl alcohol boxymethyl cellulose, methyl cellulose, or e.g. Mg (OH)
! Inorganic systems such as divalent alkali metal hydroxides may be used in place of the polyvinylpyrrolidone suspension medium. This composition is particularly useful for incorporating pharmaceutical ingredients with ethylexyl oxystearate for topical administration.

Example 5 Instead of 2-ethylexyl oxystearate, 3
37.5 grams of Araxyl Propionate (WAXEN
OL 801), or 337.5 grams of mineral oil, or 350 grams of cyclic polydimethylsiloxane (DOW
■345) or 350 grams of petroleum extract (150 grams)
~160°C boiling point), or 325 grams of petroleum jelly, or 350 grams of isopropyl isostearate (WICKENOL@131), or 375 grams of di(2-methylhexyl) adipate (WICKENO).
The operating procedure for real mN4 was repeated, except that L@l 5 8) was used. In each case, slightly soft, cloudy beads were obtained with a high collection rate.

These beads may also be used in topical medicines or sunscreens, where lattice trap emollient moisturizers have been demonstrated to achieve the desired effect by applying to the skin. The particle size of the beads obtained in this case is 0.25 to 0.5 m in diameter.
It was between s. The exact particle size varied depending on the degree and degree of agitation of the polymerization system or the ratio of suspended composition to water in the polymerization system.

In combination with or in place of the functional materials described in this example, agents suitable for topical use or sunscreens may be used as a sunscreen.

The following examples represent compositions incorporating the lattice trap functional materials of the present invention.

Example 6 Para-talc
77, 64 Kaolin KaoIJn
14.00 Colorants
O. 31 methyl paraben
Methyl paraben 0
．． 10 Propyl Rose Bear P
ropyl paraben 0.10
Germall■115
0.10 Fragrance O. 75
The 100,00 composition was mixed according to common formulation techniques.
The lattice trap softener (product of Example 5) provided favorable softening properties to the compacted powder, and use of the product on the human body allowed for application of the softener by rubbing. The compacted powder was highly resistant to crushing and glazing.

Example 7 Fragrance 1.00100
．． 00 1 Duveen 5oap Corporation
n+ 154 Morgan＾venue, Bro
The Oklyn, New York composition was mixed by common formulation techniques.

The lattice-trapped softener (Example 4) provided the soap with favorable softening properties. Additionally, the physical properties of the soap made it less brittle in use and increased its resistance to cracking. The soap also had excellent foaming properties.

Example 8 Ta1e 84
．． 5 Fragrance O, 5yloid #74 5yloid #74 0
．． 5100.00 The composition was mixed by common formulation techniques.

The lattice-trapped softening agent (Example 4) imparted favorable softening properties to the body powder. Additionally, the physical properties of the body powder have been enhanced by its enhanced adhesion to the human body. Talc may be mixed with undecylens acid before the trap to provide antibacterial properties.

Glycol ■Dan Phase BICPhase
C 2-x tylhexyl of Exa
mple 4 5a, 1l
lckhen Products+ Inc,+
Huguenot+ New York 1 2
746 Sweat-proof stick tissue is heated to 65-70″C in Phase A until melted.
The ingredients of Phase B were added gradually without further heating, and the ingredients of Phase C were slowly added under continuous stirring until a homogeneous mixture was obtained. . The mixture was then cooled somewhat and poured into molds at a temperature of about 50-55°C.

The anti-sweat stick has increased hardness and strength, is non-stick, and has desirable emollient properties.

Instead of aluminum chlorohydrinate, locally acting agents such as corticosteroids, fluorouracil, salicylic acid, clotrimazole (cl
otrimazole), zinc glycinate, or similar, or sunscreen may be added.

Example 10 Zero-order abbreviations are used in Table 2, which were carried out according to the operating procedure of Example 1, varying the type of weight and its proportions in test tubes.

LM n-Lauryl methacrylate EC Ethylene glycol dimethacrylate STM Stearyl methacrylate PHE Phenoxyethyl methacrylate CHM Cyclohexyl methacrylate Podisus Maculivetris prepared in a polypropylene test tube with a diameter of 4.5+s-
Samples of pheromone (note: the name of the insect) were cut into 15-1 lengths in the shape of plugs or cylinders and suspended in polycarbonate tubes.

The samples were blown with 11 air per minute at 20° and 10-15% relative humidity.

Weight loss of the sample occurred after release of the pheromone into the atmosphere. 10 days 1.67X 10
A constant rate dissipation of -'g/hr was achieved.

Similarly, the following dissipations of pheromones were tested:

Example 11 DIAZINON (thiophosphoric acid 0.0
Diethyl-〇-(2-isopropyl-4-methyl)), this insecticide was trapped in the system LM0.27EG0.8 molar ratio. The amount of diazinon was varied from 50 to 80%. Polymerizations were carried out at 80° C. under nitrogen as in Example 10 (pheromone). In this case, a transparent homogeneous product was obtained.

A similar procedure was used for the various insecticides listed in Table 1.

Example 12 62.5 grams of d-) lance allethrin (AIle-
thrln), 15.51 grams of lauryl methacrylate, 49.9 grams of tetraethylene glycol dimethacrylate, 1.25 grams of dibenzoyl peroxide,
0. 375m5j containing 3 grams of polyvinylpyrrolidone D-90! of deionized water under stirring. The suspension was gradually heated to 80°C. After solid beads formed, the suspension was further heated to 85°C. The beads were filtered and air dried.

A similar operating procedure was used to produce other pesticides in bead form using different monomers and their ratios and different monomer to pesticide ratios.

Example 13 P-methoxybenzasaldehyde (ben
saldehyde) using the operating procedure as in Example 10 (pheromone), at concentrations 10-80%, System L
M0.8/l! trapped in 2 mol of GO. A clear product was obtained.

Similar operating procedures were applied to various other perfume compositions listed in Table 1.

Similarly, whole perfume formulations of unknown composition were trapped at concentrations between 10 and 80%.

Polymerization of the suspension to produce bead shapes was carried out in a manner similar to that shown in the insecticide and pheromone example.

Example 14 Various chemical materials used in different fields such as softeners, esters, sunscreens, siloxanes etc. were trapped using the operating procedure described in Example 10 (pheromones). Ta. Details of the traps are shown in Table ■. ``Other chemical materials and their combinations were similarly trapped. i.e. benzophenone and ethylexyl oxystearate (
1:1nL) Oleyl alcohol and glycerin ester Petroleum extract and glycerin ester Petroleum extract Jojoba oil (J ojoba OH) Citrus oil (Citrus oil)

[Brief explanation of the drawing]

Figures 1a-1d show micrographs at increased magnification of softener esters trapped in a polymer lattice. Figures 2a to 2d show that when used as a thin layer,
Figure 3 shows the visual properties of the lattice-trapped functional material product at various magnifications; Figures 38-3d are photomicrographs of a lattice-trapped functional material product where the functional material is a polymer-compatible perfume. Figures 48 to 4d are micrographs of a softener trapped in a lattice, with the softener extracted from the lattice and the polymer formed without any functional material in the lattice. Procedural amendment (method) Patent application No. 167951 dated October 22, 1988, Composition trapped in the title lattice 3 of the invention, Relationship to the case of the person making the amendment Patent applicant name: Dow Corning Corporation 4 , Agent Address: 105 Address: 2-6-7 Toranomon, Minato-ku, Tokyo September 22, 1988 6, Brief description of drawings in the specification subject to amendment 7, Contents of amendment (1) Description “Softener ester” on page 60, line 12
Insert "grain structure" between "enlarged" and "enlarged". (2) On the same page, lines 15 and 16, “Functional material products 0.
. It shows. " is corrected to "These are microscopic photographs showing the particle structure of a functional material product at various magnifications." (3) In line 19 of the same page, insert ``Particle structure shown at various magnifications'' between ``of functional material products'' and ``micrograph.'' (4) “r other drugs” and “r@microphotograph” on page 61, line 1 of the same page.
Insert "particle structure" in between. Written amendment (method) % formula % 1. Indication of the case Japanese Patent Application No. 62-167951, title of the invention Composition trapped in a lattice 3, relationship with the person making the amendment Patent applicant name Dow Corning corporation nationality
united states of america

Claims (1)

[Scope of Claims] (1) Comprising about 5 to 95% by weight of a crosslinked hydrophobic comb-like polymer lattice and about 95 to 5% by weight of a water-insoluble liquid or solid functional material, said functional material is a solid state lattice trapping functional material composition uniformly dispersed within and trapped within said polymer lattice. (2) The lattice trap functional material composition of claim 1, wherein the monomers of the functional material and the comb copolymer are polymerized in situ. (3) the crosslinked polymer matrix comprises a functional crosslinking monomer selected from the group consisting of di- or polyfunctional monomers having at least two polymerizable double bonds; and a polymerizable monomer having one double bond. consisting of a monofunctional monomer selected from the group consisting of
A lattice trap functional material composition according to claim 1. (4) The polyfunctional group crosslinking monomer is one or two monohydric, dihydric or polyhydric alcohols, polyester, α
-β-unsaturated carboxylic acids, polyunsaturated polyvinyl ethers of polyhydric alcohols, 1 or polyunsaturated amides, α-β
The lattice trap functional material composition according to claim 3, which is a polyunsaturated monomer selected from the group of cycloaliphatic esters of unsaturated carboxylic acids. (5) The lattice trap functional material composition according to claim 3, wherein the monofunctional monomer is selected from the group consisting of hydrophobic or hydrophilic monounsaturated monomers. (6) The lattice trap functional material composition according to claim 1, wherein the functional material is an insecticide. (7) The lattice trap functional material composition according to claim 1, wherein the functional material is a pheromone. (8) The lattice trap functional material composition according to claim 1, wherein the functional material is a drug. (9) The lattice trap functional material composition according to claim 1, wherein the functional material is an antibacterial agent. (10) The lattice trap functional material composition according to claim 1, wherein the functional material is a sunscreen or a light stabilizer. (11) The lattice trap functional material composition according to claim 1, wherein the functional material is a food flavoring agent. (12) The lattice trap functional material composition according to claim 1, wherein the functional material is a pigment. (13) The lattice trap functional material composition according to claim 1, wherein the functional material is a synthetic insect attractant. (14) The lattice trap functional material composition according to claim 1, wherein the polymer lattice is free of syneresis. (15) The lattice trap functional material composition according to claim 1, wherein the functional material is a herbicide. (17) The lattice trap functional material composition according to claim 6, wherein the insecticide is a larval hormone analog. (18) The lattice trap functional material composition according to claim 11, wherein the food flavoring agent is a sweetener. (19) The lattice trap functional material composition according to claim 1, wherein the composition is a free-flowing powder. (20) The lattice trap functional material composition according to claim 1, wherein the composition is a free-flowing bead. (21) The lattice trap functional material composition according to claim 1, wherein the composition is a plug. (22) The lattice trap functional material composition according to claim 1, wherein the plug has a cylinder shape. (23) The lattice trap function according to claim 5, wherein the monomer is an alkyl methacrylate and an alkyl acrylate having a linear or branched alkyl group having 1 to 30 carbon atoms. sexual material composition. (24) The lattice trap of claim 23, wherein the monomer is selected from the group consisting of lauryl methacrylate, 2-ethylhexyl methacrylate, isodecylmethacrylamide, diacetone acrylamide, and methoxyethyl methacrylate. Functional material composition.