JPH0797791A - Paper having improved working capacity manufactured by sizing agent of 2-oxetanone - Google Patents

Abstract

PURPOSE: To obtain a sized paper having an excellent processability in high speed process or in electronic copying process by sizing, for example, an alkaline fine quality paper with a mixture of alkylketenedimer and a specific 2-oxetanone multimer. CONSTITUTION: A processed paper having processability excellent in a pillowing rate on the high speed printer of the IBM 3800 is obtained by sizing an alkaline fine quality paper, sizing inside and outside of the paper, to give a good balance of size and processing property equivalent to the conventional ADK sizing agent by using a sizing agent containing 2-oxetanone mixture (in the mixture at least two 2-oxetanone rings are contained in 50 wt.%), obtained from, for example, a palmitic acid or a monocarboxylic acid of a stearic acid and a cebacic acid or a bicarboxylic acid of an azelaic acid, expressed by the formula (n is 0, integers; R, R" are saturated linear alkyls having 8-22C; R' is a saturated linear alkyl, n is 1 in a compound of at least 50 wt.% of the mixture), with particularly R, R" being saturated linear alkyls having 14-16C, R' being a saturated linear alkyl having C5-6 .

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to papers containing alkaline sizing agents and methods for using the papers.

[0002]

The amount of fine paper produced under alkaline conditions has resulted in cost savings, the ability to use precipitated calcium carbonate, improved paper durability and increased demand for whiteness, and the wet end of the paper machine. It has been increasing rapidly, aided by the increasing tendency to close.

Recent applications for premium papers pay particular attention to their size prior to processing or end use, such as high speed photocopies, envelopes, form bonds including computer printer papers and adder papers. I need. The most commonly used sizing agent for fine paper manufactured under alkaline conditions is alkenyl succinic anhydride (AS
A) and alkyl ketene dimers (AKD). Both types of sizing have a reactive functional group covalently attached to the cellulosic fibers and a hydrophobic tail arranged away from the fibers. The nature and arrangement of these hydrophobic tails causes the fibers to repel water.

Commercial ADK containing one β-lactone ring
Is produced by dimerization of two saturated linear fatty acid chlorides, the most widely used being palmitic acid or stearic acid. Other ketene dimers have also been used commercially, such as alkenyl-based ketene dimers (Aquapel® 421 available from Hercules Incorporated of Wilmington, Del.). ASA-based sizing agents are prepared by the reaction of maleic anhydride with olefins of 14-18 carbon atoms.

[0005]

Although ASA and AKD sizing agents have been commercially successful, they have disadvantages. Quantity-type sizing agents, especially ADK-type, are associated with the handling problems in typical high speed processing operations required for modern applications of fine paper produced under alkaline conditions (referred to as alkaline fine paper). ing. This problem includes reduced operating speeds on form presses and other processing machines, double feed or blockages on high speed copiers, misalignment of high speed printing and envelope folding devices.

These problems are not usually associated with fine paper produced under acidic conditions (acid fine paper). The type of filler used to make alkaline fine paper and the level of addition of the filler are very different from those used to make acidic fine paper, such as the stiffness and friction coefficient that affect the handling of the paper. It makes a difference in the properties of the paper. The level of alum addition in alkaline fine paper, which contributes to sheet conductivity and dissipation of electrostatic charge, is also very different from that used in acidic fine paper. This is important because the electrical properties of paper affect its handling performance. Sodium chloride is often added to the surface of alkaline fine paper to improve its end use performance.

Typical problems encountered in the processing and end use handling of alkaline fine papers are: 2. Paper properties related to furnish composition; 2. Paper properties that develop during paper formation; and Includes size issues.

The properties of paper that can affect processing and end use, which are affected by papermaking under alkaline conditions, are: -Curl-Change in friction coefficient-Water distribution-Stiffness-Dimensional stability-MD / CD strength ratio Such problems are "improved performance of alkaline fine paper on IBM laser printers" by TAPPI Papermakers Conference Proceedings (199).
Identified and measured as described in 1).
The problem occurs when using the IBM 3800 high speed continuous form laser printer, which has no special improvements intended to facilitate handling of alkaline fine paper. Therefore, this commercially important laser printer can serve as an effective test device for defining processability and subsequent end-use performance of the various types of sized paper technology on current processing equipment. You can In particular, "Billowin
g) ”phenomenon is the I between the non-driven roll on the other side of the fuser and the driven roll on the stacker.
It gives a measurable indicator of the degree of slippage on a BM3800 printer.

Such billowing includes opening the paper path from a straight line between the rolls, the opening being 2 inches (5 cm) above the base plate, stacker misalignment and drop folds (d).
It causes a roped fold). The speed of billowing during steady state is measured as the billowing height in inches on a straight paper path after 600 seconds of running time,
And you can get 10,000.

Typical alkaline ADK sized 2.2 lbs. / Ton (paper size in 0.9 metric tons of paper) Premium paper using furnish is unacceptable billowing rate (typically on the order of 20-80)
Indicates. Paper handling rates on other high speed processing machines such as the Hamilton-Stevens continuous form press, or Winkler and Dune Beer CH envelope folding machines also provide a numerical measure of processability.

Ketene multimers having one or more beta lactone rings are also disclosed as paper sizing agents in Japanese publications 168991/89 and 168992/8.
9 are disclosed. This ketene multimer is said to exhibit improved size compared to previously used ketene dimers. Multimers are made from a mixture of mono- and dicarboxylic acids. The advantages of a combination of good size and high speed processing or good performance on electrocopy machines have not been shown. Also, these documents do not disclose the particular multimers claimed in the present invention.

There is a need for alkaline fine paper to provide improved handling performance in typical processing and electrocopying operations. At the same time, the level of size development is the latest furnishing level ADK or ASA for alkaline fine paper.
Must be comparable to what you get in.

[0013]

SUMMARY OF THE INVENTION Paper of the present invention sized with a size comprising a mixture of 2-oxetanone compounds is produced under conditions where the paper is alkaline, and
The oxetanone compound has the formula:

[Chemical 5] (In the formula, n is 0 or an integer, and R and R ″ are 8 to 2
Identical or different saturated linear straight chain alkyl groups having 4 (preferably 14 or 16) carbon atoms,
R'is a saturated linear alkyl group having 4 to 40 (preferably 5 or 6) carbon atoms and n is at least 50% by weight (preferably 60%) of the 2-oxetanone compound in the mixture. It is characterized by being at least 1. This paper can operate on high speed processing machines or during electrocopying operations without encountering significant machine-feed problems.

Also according to the invention, the mixture of 2-oxetanone compounds comprises at least one linear saturated alkyl monocarboxylic acid of 10 to 26 carbon atoms and at least 1
Reaction product of a reaction mixture comprising two linear saturated alkyl dicarboxylic acids of 8 to 44 carbon atoms, wherein the mono-to dicarboxylic acid ratio is 1.0 to 3.5, At least 50% by weight of the oxetanone compound
Has at least two 2-oxetanone rings.

Preferably the paper according to the invention is 30-60.
lb / 3000ft ² (13.6-27.2kg / 2
79 m ² ) and has an IBM model 38
00 High Speed Continuous-Following rate in inches of increase per second on foam laser printers x 10000
Can be traveled without being larger than 5.

The paper of the present invention is 15-24 lb / 1300.
8 1/2 x 11 inches (21.6 x 28c) with a basis weight of ft ² (6.8 to 10.9 kg / 121 m ² ).
m) Can be made into sheets of electronic copy-cut paper and can be run on high speed laser printers or copiers at a rate of 5 out of 10,000 without misfeeds or blockages.

20 to 24 lb / 3000 ft ² (9.
Paper of the present invention having a basis weight of 1-10.9 kg / 121 m ² ) is 1300-200 on a continuous foam press.
It can be processed into standard perforated continuous foam at a press speed of 0 feet (390-600 m) / min.

20-24 lb / 3000 ft ² (9.
Paper according to the invention having a basis weight of 1 to 10.9 kg / 121 m ² and sized with an addition rate of at least 2.2 lb / ton (1 kg / ton in 0.9 metric) is Hamilton. -At least 1775 feet (541) on the Stevens Continuous Form Press
m) / min, preferably 1900 feet (579 m) /
With a press speed of a minute, standard perforated continuous foam paper can be processed.

Also according to the invention, 20 to 24 lb /
1300ft ² (9.1 to 10.9kg / 121m ² )
Paper having a basis weight of at least 90 per minute on a Winkler and Duneby CH envelope folding machine
It can be processed into 0 envelopes, preferably 1000 envelopes.

Machine-feed problems on high-speed machines or during electrocopying operations can occur if they cause misfeeds, poor alignment, or blockages to unacceptable levels as discussed below or reduce machine speed. If so, it is defined as critical in any particular fabrication or electrocopying application.

The process of the present invention for making paper under alkaline conditions exhibits levels of size comparable to those obtained with the modern AKD and ASA size techniques, and is improved in typical end use and processing operations. Giving good handling performance.

The 2-oxetanone sizing agent of the present invention comprises a saturated linear alkyl ketene dimer and various molecular weight 2-oxetanone dimers.
A mixture with oxetanone multimers, at least 50 mol%, preferably 60 mol% of the compounds in the mixture
Has at least two 2-oxetanone rings. Therefore, the present size has more reactive sites for covalent attachment to cellulose than conventional AKD and ASA alkaline sizes. The mole% of compounds having two or more 2-oxetanone rings increases as the mole ratio of mono-to dicarboxylic acid decreases.

These reactive sizing agents are disclosed in Japanese publication 16
8992/89 and US Pat. No. 4,317,759. In the first step,
The acid chloride is formed from a mixture of at least one linear saturated alkyl monocarboxylic acid and at least one linear saturated alkyl dicarboxylic acid using phosphorus trichloride or other conventional chlorinating agent. The molar ratio of mono- to dicarboxylic acid is 1.0 to 3.5, preferably 2.5, more preferably 2.0. The acid chloride is then dehydrochlorinated in the presence of triethylamine or other suitable base in propylene dichloride or other anhydrous neutral solvent to form a mixture of 2-oxetanone compounds. The monocarboxylic acid can be a mixture of C ₁₆ and C ₁₈ linear saturated alkyl monocarboxylic acids (eg, Emery 135 fatty acids available from Henkel-Emery, Cincinnati, Ohio, USA). Stable emulsions of these sizes can be made in the same way as standard ADK emulsions.

The linear saturated alkyl monocarboxylic acid used to prepare the 2-oxetanone compounds of the present invention has 10 to 26 carbon atoms, preferably 14 to 22 carbon atoms, and most preferably 16 to 18 carbon atoms. Has 4 carbon atoms. These acids include, for example, stearic acid, myristic acid, palmitic acid, margaric acid, pentadodecanoic acid,
Includes decanoic acid (capric acid), undecanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, nonadecanoic acid, arachidic acid and behenic acid. One or more of these monocarboxylic acids can be used.

The linear saturated alkyldicarboxylic acids used to prepare the 2-oxetanone multimers of the present invention have 8 to 44 carbon atoms, preferably 9 to 10, 22 or 36 carbon atoms. . Most preferred are dicarboxylic acids of 9 to 10 carbon atoms. Such dicarboxylic acids include sebacic acid, azelaic acid, 1,10-dodecanedioic acid, suberic acid, brazylic acid and docosandioic acid, and EMPOL 1008 available from Henkel-Emery, Cincinnati, Ohio, USA.
It contains dimer acid (C ₃₆ ).

The alkaline paper preferably made according to the method of the present invention comprises a water-soluble inorganic salt of an alkali metal, preferably sodium chloride (NaCl) and alum and precipitated calcium carbonate. However, the papers of the present invention are often made without NaCl.

The size of the present invention can be applied as an internal size or an external size. Internal size involves the addition of a sizing agent to the pulp slurry prior to sheet formation, while surface size involves dipping the paper in the sizing agent or spraying the sizing agent onto the paper, then using known drying techniques. It is dried by heating.

The papers of the present invention generally have at least 0.5 liters.
b (0.2 kg), preferably at least 1.5 lb
(0.8 kg), more preferably at least 2.2
It is sized with a size addition rate of lb / ton (1 kg / ton in 0.9 metric) or higher. It can be, for example, in the form of continuous foam bond paper, perforated forms paper, adder paper, or envelope making machines and processed products such as copy paper and envelopes.

The papers of the present invention can operate effectively in tests that measure processability on the state of the art processing equipment and performance on end-use high speed machines. In particular, 30-6
0 lb / 3000 ft ² (13.6-27.2 kg / 2
79 m ² ), preferably 40-50 lb / 3000f
t ² may be made into continuous forms bond paper roll having a basis weight of ^{(18~22. 6kg / 279m 2)} , the paper according to the present invention can be run on a high speed continuous forms laser printer. When this paper is sized at an addition rate of at least 2.2 lb / ton (1 kg / ton at 0.9 metric), the paper will be sized at 1 on an IBM Model 3800 High Speed Continuous Forms Laser Printer.
Billing rate in inches x 100 after driving for 0 minutes
00 can be run at preferably less than 3 without being made greater than 5.

Further, 15 to 24 lbs / 1300 ft
8 1/2 x 11 inches (21.6 cm x 28) with a basis weight of ² (6.8 to 10.9 kg / 121 m ² ).
The preferred paper according to the invention, which can be made into sheets of electrocopy cut paper of cm), can be run on a high speed laser printer or copier. Paper is at least 1.5
When sized at an addition rate of lb / ton (0.68 kg / ton at 0.9 metric), preferably 2.2 lb / ton (1 kg / ton at 0.9 metric), the paper is IBM model 3825 high speed. 5 out of 10,000 on the copier
It can run at the following rates, preferably less than 1 in 10,000, without erroneous supply or blockage. By comparison, the standard A
KD sized paper has a much higher rate of double feed on the IBM 3825 high speed copier (14 double feeds out of 14250 sheets). 1000 in conventional copier operation
A double supply of 10 out of 0 is unacceptable. 1 machine manufacturer
A double supply of 1 for 0000 sheets is considered unacceptable.

20 to 24 lb / 3000 ft ² (9.
The paper of the invention in the form of a roll of continuous foam bond paper having a basis weight of 1 to 10.9 kg / 279 m ² ) is 1300 to 2000 on a continuous foam press.
It can be processed into standard perforated continuous foam at a press speed of feet (390-600 m) / min. 20-2
4 lb / 3000ft ² (9.1-10.9kg / 2
79 m ² ) and has a basis weight of at least 2.2
A preferred paper according to the invention in the form of a roll of continuous foam bond paper sized at an addition rate of lb / ton (1 kg / ton at 0.9 metric) is Hamilton-
It can be processed into standard perforated continuous foam at a press speed of at least 1775 feet (541 m) / minute, preferably at least 1900 feet (579 m) / minute on a Stevens continuous foam press.

The paper of the present invention also has 20-24 lb / 1.
Of envelope paper having a basis weight of 300 ft ² (9.1 to 10.9 kg / 121 m ² ) and a loading rate of at least 2.2 lb / ton (1 kg / ton in 0.9 metric). Can be made into rolls. The paper can be processed on a Winkler and Duneby CH envelope folder into at least 900 envelopes per minute, preferably 1000 envelopes per minute.

The paper of the present invention is capable of running at a speed of at least 58 sheets / minute on a high speed IBM 3825 sheet fed copier with less than 1 double feed or blockage per 10,000.

The paper of the present invention has the same basis weight and a comparable size in AKD size made from a mixture of stearic acid and palmitic acid after a running time of 10 minutes on a high speed continuous foam laser printer. It is possible to run at least 10% less (preferably 20% less) billowing than that produced when running a roll of continuous foam-bonded paper made on the same printer.

The papers of the present invention have the same basis weight sheets of AKD size having the same basis weight and made from a mixture of stearic acid and palmitic acid on a high speed IBM 3825 sheet feeding copier. Double feeds or blockages of at least 50% less (preferably 70% less) than the number of double feeds or blockages that occur when running on a copier can be run at a speed of 58 sheets / minute.

The paper of the present invention was prepared on a continuous foam press,
Standard perforations at a press speed of at least 3% higher (preferably at least 5% higher) than AKD size similarly sized paper having the same basis weight and made from a mixture of stearic acid and palmitic acid. It can be processed into continuous foam.

Paper for evaluation on the IBM 3800 was made on a pilot paper machine. Typical Foam Bond Paper-To make a furnish, pulp furnish (3 parts of southern hardwood kraft pulp and 1 part of southern softwood).
kraft pulp) was purified to 425 ml Canadian Standard Freeness (C.S.F.) using a double disc refiner. Prior to the addition of the filler to the pulp furnish (10% medium size precipitated calcium carbonate),
PH (7.8-8.0) and alkalinity (1
50-200 ppm), and hardness (100 ppm) were adjusted using appropriate amounts of NaHCO ₃ , NaOH, and CaCl ₂ .

Mixtures of 2-oxetanone compounds were prepared by conventional methods used to make commercial alkyl ketene dimers. That is, acid chlorides from a mixture of linear saturated fatty acids and linear saturated alkyl dicarboxylic acids were formed using conventional chlorinating agents, and the acid chlorides were dehydrochlorinated in the presence of a suitable base. . Two
An emulsion of a mixture of oxetanone compounds was prepared according to the disclosure of US Pat. No. 4,317,756, with particular reference to Example 5 of the patent.

2-oxetanone multimer sizing agent, quaternary amine-substituted cationic starch (0.75%), alum (0.2%), and retention aid (0.025%).
%) Was added at the wet end. The stock temperature in the headbox and white water tray is 110 ° F (43.3).
C) was controlled.

The wet press is 40 p.si (2.8 kg
/ Cm ² ) The gauge was set. A dryer distribution was used that gave 1-2% moisture in the size press and 4-6% moisture in the reel (77 feet (23.4
m) / min). Prior to size pressing, the Hercules Size Test (HST) was used to measure size levels on a sample of paper torn from the edge of the sheet. Almost 35 l
b / ton (15.9 kg / 0.9 meter-ton) of oxidized corn starch and 1 lb / ton (0.45 kg / ton)
0.9 meter-ton) of NaCl was added in a size press (130 ° F (54.4 ° C), pH 8). The calender pressure and reel moisture were adjusted to obtain a Sheffield smoothness of 150 flow units on the reel (column # 2, on felt side).

A35 minute roll
2) of standard 8 1/2 "x 11" (21.6 x 28c) on a commercial foam press.
It processed into the foam of m). In addition, the sample
Natural aging (natural) before and after 5 minute rolls
aged) size test basis weight (46 lb / 3000
ft ² , 20.8 kg / 279 m ² ) and collected for smoothness testing.

The processed paper was allowed to equilibrate in the printer room for at least 1 day before evaluation. The paper in each box was evaluated on an IBM 3800 for 10-14 minutes (220 feet (66.7 m) / minute). All stocks were evaluated twice. Standard acidic fine paper was run for at least 2 minutes between each evaluation to restore the initial mechanical condition.

To establish whether sizing contributes to difficulties in processing operations, paper was made on a pilot paper machine, processed into foam, and then IBM 3800.
Printed on a high speed printer. Running capacity on IBM 3800 was used as a measure of processing performance. In particular, IBM38
The height at which the paper billows between the two defined rolls on 00 was used to represent processing performance. The faster and higher the sheet is billowing, the worse the processing performance.

The Hercules Size Test (HST) is an industry standard test for measuring the extent of size. This method allows optical detection of the front side of the liquid as it moves through between the sheets by employing an aqueous dye solution as the penetrant. The device measures the time required for the reflectance of a sheet surface not in contact with the penetrant to drop to its pre-determined percentage of its original reflectance. Unless otherwise noted, all HST test data reported measures seconds to 80% reflection with a 1% formic acid ink mixed with Naphthol Green B. The use of formic acid inks is a more stringent test than neutral inks and tends to speed test times. High HST values are better than low values. The amount of size desired depends on the type of paper being made and the system used to make it.

[0045]

EXAMPLE 1 This example describes the preparation of a mixture of 2-oxetanone compounds from a 2.5 molar ratio blend of stearic acid and sebacic acid.

A molar ratio of 2.5 stearic acid (227.2
g, 0.8 mol) and sebacic acid (64.64 g, 0.32)
Mol) under a nitrogen atmosphere at 110 ° -116.
It was melted by heating at a temperature in the range of ° C. The molten acid blend was then poured into a Pyrex jacketed vessel preheated to 95 ° C. equipped with a mechanical stirrer, chiller, nitrogen purge and thermocouple. The molten acid in the container is 75 ° to 8
When cooled to 5 ° C., PCl ₃ (130.5 g) was added dropwise all at once into the reactor. After 3 hours of chlorination and sedimentation,
The phosphoric acid was separated from the acid chloride blend. Excess PCl
_{The 3} was stripped off under vacuum and the acid chloride blend (307.5 g, 1.12 mol) was recovered in near theoretical yield. A blend of stearic acid and sebacic acid chloride was then mixed with propylene dichloride (650) as a reaction solvent.
ml) and triethylamine (160) as a base catalyst.
g, 1.584 mol, 10% molar excess) was added dropwise into the reactor. After 2 hours the triethylamine hydrogen chloride salt was removed by suction filtration and the stearic acid /
The sebacic acid 2-oxetanone multimer mixture was recovered as a pale yellow solid (232.78 g). The solvent and excess triethylamine were evaporated to give an overall yield of 90%. The mixture contained 54.7% multimers with two or more oxetanone rings.

[0047]

Example 2 In this example, palmitin / molar ratio of 2.5 was used.
The preparation of a mixture of 2-oxetanone compounds from a blend of azelaic acid is described.

A molar ratio of 2.5 palmitic acid (204.8)
g, 0.8 mol) and azelaic acid (60.16 g, 0.3)
2 mol) and a blend of 80 ° to 85 ° C. under a nitrogen atmosphere.
It melted by heating at the temperature of. The molten acid blend was then poured into a Pyrex jacketed vessel equipped with a mechanical stirrer, chiller, nitrogen purge and thermocouple, preheated to the chlorination temperature (70 ± 2 ° C). Chlorinating agent PCl
₃ (97.9 g) was added all at once into the reactor. The container temperature dropped by 2 ° to 5 ° C initially, but finally stabilized at 70 ± 2 ° C. After 3 hours of chlorination and settling, phosphoric acid was separated from the acid chloride blend. Excess PCl ₃ was stripped off under vacuum and 290.0 g of the acid chloride blend was recovered in near theoretical yield. The chloride blend of palmitic acid and azelaic acid was then charged with propylene dichloride (650 ml) as the reaction solvent and triethylamine (160 g, 10% excess) as the base catalyst.
It was added dropwise into the reactor at 0 ° to 45 ° C. Two hours later,
The triethylamine hydrogen chloride salt was separated by suction filtration and the 2-oxetanone multimer mixture was recovered as a pale yellow solid by evaporation of the solvent and excess triethylamine. The overall yield was 96% (240.53 g). The mixture contained 58.2% multimers with two or more oxetanone rings.

[0049]

Example 3 In this example, a number of sizing agents were used,
Processing-difficult grade alkaline fine paper IBM380
They were tested for their effect on zero driving ability. The control is a standard AK made from a mixture of stearic acid and palmitic acid using the method described in Examples 1 and 2.
It is a D size agent. The mixture of 2-oxetanone compounds used in Samples 2-6 was prepared using the method described in Examples 1 and 2, using the following mono- to dicarboxylic acid mixtures in the molar ratios shown in the table. : Sample 2
-Palmitic acid / 1,10-dodecanedioic acid; sample 3-palmitic acid / sebacic acid; sample 4-palmitic acid / azelaic acid; sample 5-stearic acid / sebacic acid; sample 6
-Stearic acid / EMPOL 1008C ₃₆ dimer acid (available from Henkel-Emeri, Cincinnati, Ohio, USA). The percentage of the 2-oxetanone compound containing two or more rings was 58.2% for sample 2, 64.7% for sample 3, 58.2% for sample 4, and 54.7% for sample 5. And for sample 6, 63.
1%.

The size and processing test results are shown in Table 21.

[0051]

[Table 1] This data shows that the 2-oxetanone sizing agents of the present invention give a better balance of size and processing performance (less billowing at comparable size) than the commercial alkene dimer sizing agents used as controls. Is shown. The best balance of size and handling performance was obtained with Sample 3. This size gives a level of size comparable to that obtained with the AKD control, and gives a better running paper on the IBM 3800 than paper sized with the ADK control.

Front Page Continuation (72) Inventor Kyle J. Bottouf 1971 Delaware, United States, Newark, Estates of Corner Ketch, Worthington Park Road 61

Claims (35)

[Claims] 1. A paper sized with a size comprising a mixture of 2-oxetanone compounds, the paper being produced under alkaline conditions, and the 2-oxetanone compound having the formula: (In the formula, n is 0 or an integer, and R and R ″ are 8 to 2
The same or different saturated linear alkyl group having 4 carbon atoms, R ′ is a saturated linear alkyl group having 4 to 40 carbon atoms, and at least 5 in the mixture
N is at least 1 in 0% by weight of the compound. )
And the paper does not encounter significant machine-feed problems on high speed processing machines or during electrocopying operations. 2. The paper of claim 1 further characterized in that R and R ″ are saturated straight chain alkyl groups having 14 or 16 carbon atoms. 3. Paper according to claim 1 or 2, further characterized in that R'is a saturated straight-chain alkyl group having 5 to 6 carbon atoms. 4. The percentage of 2-oxetanone compounds in the mixture, wherein n has at least 1, is at least 60.
Paper according to any of claims 1 to 3, further characterized in that it is% by weight. 5. The method of claim 1 further characterized in that the size further comprises a water soluble inorganic salt of an alkali metal.
The paper according to any one of 4 above. 6. Paper according to claims 1-5, further characterized in that the alkali metal salt is sodium chloride. 7. The paper according to claim 1, further characterized in that the paper is externally sized. 8. Paper according to claims 1-6, further characterized in that the paper is internally sized. 9. The paper according to claim 1, further characterized in that the sizing agent is manufactured from palmitic or stearic acid and azelaic acid. 10. Paper according to claims 1-9, further characterized in that the paper is in the form of a continuous foam bond paper. 11. Paper according to claims 1-9, further characterized in that the paper is in the form of adder paper. 12. Paper according to claims 1-9, further characterized in that the paper is in the form of envelope-making paper. 13. Paper according to claims 1-9, further characterized in that the paper is in the form of an envelope. 14. A high-speed continuous form laser printer, 30-60 lb / 3000 ft @ 2 (13.6-2).
7. In roll form of continuous forms bond paper having a basis weight of 2kg / 279m ^2), a method for driving the paper according to claims 1-9. 15. Paper is sized at an addition rate of at least 2.2 lb / ton (1 kg / ton at 0.9 metric), and the method is run on an IBM Model 3800 High Speed Continuous Foam Laser Printer for 10 minutes. After hours, increase the billing rate in inches x 10000
15. The method of claim 14, further characterized by being performed without a greater increase. 16. A high-speed laser printer or a copying machine having a size of 15-24 lb / 1300 ft ² (6.8-10.
81/2 × 1 with a basic weight of 9 kg / 121 m ² )
A method of running a paper according to claims 1-9 in the form of a 1 inch (21.6 x 28 cm) electronic copy paper. 17. Paper is sized at an addition rate of at least 2.2 lb / ton (1 kg / ton at 0.9 metric), and the method is erroneous at a rate of 5 / 10,000 or less on an IBM 3825 high speed copier. 17. The method of claim 16, further characterized by being performed without delivery or occlusion. 18. 20 to 24 lb / 3000 ft ²
A paper according to claims 1 to 9 in the form of a roll of continuous foam bond paper having a basis weight of (9.1 to 10.9 kg / 279 m ² ) on a continuous foam press.
A method of processing into a standard perforated continuous foam at a pressing speed of 300 to 2000 ft (300 to 600 m) / min. 19. 20 to 24 lb / 3000 ft ²
It has a basis weight of (9.1 to 10.9 kg / 279 m ² ) and is at least 2.2 lb / ton (1 kg / 0.
1 to 9 in the form of a roll of continuous foam bond paper sized at an addition rate of 9 tonnes).
At least 1775 feet (53 mm) on a Hamilton-Stevens continuous form press.
A method of processing into a standard perforated continuous foam at a pressing speed of 2 m) / min. 20 to 20 lb / 1300 ft ²
It has a basis weight of (9.1 to 10.9 kg / 121 m ² ) and is at least 2.2 lb / ton (1 kg / 0.
The paper of claims 1-9 in the form of a roll of envelope paper sized at an addition rate of 9 tonnes).
Winkler and Duneby CH Envelope Folding machine to process at least 900 envelopes per minute. 21. A high speed continuous foam laser printer, after a running time of 10 minutes, having the same basis weight and made from a mixture of stearic acid and palmitic acid.
A further characteristic is that a roll of KD size and comparable sized continuous foam bond paper can be run at a beloWing rate that is at least 10% less than that produced when run on the same printer. The paper according to item 9. 22. A high-speed IBM 3825 sheet-fed copier on which the same level of AKD size paper sheets having the same basis weight and made from a mixture of stearic acid and palmitic acid were made on the same copier. Paper according to claims 1-9, further characterized in that it can be run at a speed of 58 sheets per minute with a double feed or blockage that is at least 50% less than the number of double feeds or blockages that occur when running. 23. On a continuous foam press at a standard press speed of at least 3% higher than a paper of the same basis weight and leveled with AKD size made from a mixture of stearic acid and palmitic acid. Paper according to claims 1-9, further characterized in that it can be processed into a perforated continuous foam. 24. The 2-oxetanone compound has the formula: (In the formula, n is 0 or an integer, and R and R ″ are 8 to 2
The same or different saturated linear alkyl group having 4 carbon atoms, and R ′ is a saturated linear alkyl group having 4 to 40 carbon atoms. A mixture of 2-oxetanone compounds, said mixture comprising at least one linear saturated alkyl monocarboxylic acid of 10 to 26 carbon atoms and at least one 8 to
A reaction product of a reaction mixture comprising a linear saturated alkyl dicarboxylic acid of 44 carbon atoms, wherein the ratio of mono-to dicarboxylic acid is 1.0 to 3.5 and at least 50% by weight of the compounds in the mixture. Wherein said has at least two 2-oxetanone rings. 25. The mixture according to claim 24, further characterized in that the molar ratio is 2.5. 26. The mixture according to claim 25, further characterized in that the molar ratio is 2.0. 27. The mixture of claims 24-26, further characterized in that the dicarboxylic acid is selected from the group consisting of dicarboxylic acids of 9-10 carbons, 22 carbons, and 36 carbons. 28. The mixture according to claim 27, further characterized in that the dicarboxylic acid has 9 to 10 carbon atoms. 29. A method according to claims 24-2, further characterized in that the monocarboxylic acid has 14-22 carbon atoms.
The mixture according to 8. 30. The method according to claim 24, further characterized in that the monocarboxylic acid has 16 to 18 carbon atoms.
The mixture according to 9. 31. The mixture according to claims 24-28, further characterized in that the monocarboxylic acid is a linear saturated alkyl monocarboxylic acid of 16 and 18 carbon atoms. 32. The mixture of claims 24-31, further characterized in that at least 60% by weight of the compound has at least two 2-oxetanone rings. 33. The mixture according to claims 24-30, further characterized in that the monocarboxylic acid is palmitic or stearic acid and the dicarboxylic acid is azelaic acid. 34. A method of making paper for operation in a precision processing or electrocopying machine, comprising the formula: (Wherein n is 0 or an integer, R and R ″ are the same or different saturated linear alkyl groups having 14 or 16 carbon atoms, and R ′ has 5 or 6 carbon atoms. 2-oxetanone sizing agent comprising a mixture of 2-oxetanone compounds having saturated linear alkyl groups and having at least 50% by weight of the compounds in the mixture n is at least 1. A method as described above, characterized in that it comprises the step of initially sizing the paper under conditions. 35. Use of a paper sized with a size comprising a mixture of 2-oxetanone compounds, wherein the paper is sized under alkaline conditions; the 2-oxetanone compound having the formula: Wherein n is 0 or an integer, R and R ″ are the same or different saturated linear alkyl groups having 14 or 16 carbon atoms, and R ′ has 5 to 6 carbon atoms. Saturated linear alkyl groups and at least 50% by weight of the compounds in the mixture n is at least 1
Is. ), And the paper is used in high speed processing or electrocopying operations.