US3843581A
Expired / Lapsed
US
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Reducing heat-seal temperature requirements for coatings prepared from latexes of vinylidene chloride polymers
Assignee: Dow Chemical Co
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Filing: 1973-07-09
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Granted: 1974-10-22
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Expires: 1993-07-09
Abstract
Abstract A process for reducing the heat-seal temperature requirements of films and coatings produced from high vinylidene chloride polymer latexes comprising having present in films or coatings formed from such latexes, prior to fusion thereof, from about 0.5 to about 5 percent by weight of latex polymer solids of a polyoxyethylene sorbitan fatty acid monoester containing from about 10 to 20 moles of ethylene oxide and wherein said fatty acid contains from about 12 to 18 carbon atoms.
Inventors
- 👤 D Gibbs
- 👤 R Wessling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:36
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
37 words
A PROCESS FOR REDUCING THE HEAT-SEAL TEMPERATURE REQUIREMENTS OF FILMS AND COATINGS PRODUCED FROM A POLYMER LATEX WHICH LATEX CONSISTS ESSENTIALLY OF WATER AND A COLLOIDALLY DISPERSED SOLID POLYMER PREPARED BY THE POLYMERIZATION IN AQUEOUS DISPERSION OF
Claim 2
Dependent Claim
37 words
A PROCESS FOR REDUCING THE HEAT-SEAL TEMPERATURE REQUIREMENTS OF FILMS AND COATINGS PRODUCED FROM A POLYMER LATEX WHICH LATEX CONSISTS ESSENTIALLY OF WATER AND A COLLOIDALLY DISPERSED SOLID POLYMER PREPARED BY THE POLYMERIZATION IN AQUEOUS DISPERSION OF
Claim 3
Dependent Claim
19 words
AT LEAST ABOUT 80 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF MONOMERS USED OF VINYLIDENE CHLORIDE, AND
Claim 4
Dependent Claim
19 words
AT LEAST ABOUT 80 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF MONOMERS USED OF VINYLIDENE CHLORIDE, AND
Claim 5
Dependent Claim
35 words
FROM ABOUT 0.1 TO ABOUT 5 PERCEBNT BASED ON THE TOTAL WEIGHT OF THE MONOMERS USED OF A SIGNIFICANTLY WATERSOLUBLE IONIC MATERIAL SELECTED FROM THE GTOUP OF SULFONIC ACIDS AND THEIR SALTS HAVING THE FORMULA
Claim 6
Dependent Claim
35 words
FROM ABOUT 0.1 TO ABOUT 5 PERCEBNT BASED ON THE TOTAL WEIGHT OF THE MONOMERS USED OF A SIGNIFICANTLY WATERSOLUBLE IONIC MATERIAL SELECTED FROM THE GTOUP OF SULFONIC ACIDS AND THEIR SALTS HAVING THE FORMULA
Claim 7
Dependent Claim
15 words
The process of claim 1 wherein said significantly water-soluble ionic material is sodium sulfoethyl methacrylate.
Claim 8
Dependent Claim
63 words
from about 0.1 to about 5 percent based on the total weight of the monomers used of a significantly water-soluble ionic material selected from the group of sulfonic acids and their salts having the formala R-Z-Q-SO3 -M+ wherein the radical R is selected from the group consisting of vinyl and alpha-substituted vinyl; the symbol Z represents a difunctional linking group of the structure
Claim 9
Dependent Claim
63 words
from about 0.1 to about 5 percent based on the total weight of the monomers used of a significantly water-soluble ionic material selected from the group of sulfonic acids and their salts having the formala R-Z-Q-SO3 -M+ wherein the radical R is selected from the group consisting of vinyl and alpha-substituted vinyl; the symbol Z represents a difunctional linking group of the structure
Claim 10
Dependent Claim
102 words
any remainder being one or more monoethylenically unsaturated comonomers selected from the group consisting of methacrylic acid, methyl methacrylate, hydroxyethylacrylate, hydroxypropylacrylate, hydroxyethylmethacrylate, acrylic acid, acrylonitrile, methacrylonitrile, acrylamide and the lower alkyl and dialkylacrylamides, acrolein, methylvinyl ketone and vinyl acetate, said process comprising: having present in said polymer latex prior to fusion of said latex into a film or coating from about 0.5 to about 5 percent by weight of latex polymer solids of a polyoxyethylene sorbitan fatTy acid monoester containing from about 10 to 20 moles of ethylene oxide and wherein said fatty acid contains from about 12 to 18 carbon atoms.
Claim 11
Dependent Claim
102 words
any remainder being one or more monoethylenically unsaturated comonomers selected from the group consisting of methacrylic acid, methyl methacrylate, hydroxyethylacrylate, hydroxypropylacrylate, hydroxyethylmethacrylate, acrylic acid, acrylonitrile, methacrylonitrile, acrylamide and the lower alkyl and dialkylacrylamides, acrolein, methylvinyl ketone and vinyl acetate, said process comprising: having present in said polymer latex prior to fusion of said latex into a film or coating from about 0.5 to about 5 percent by weight of latex polymer solids of a polyoxyethylene sorbitan fatTy acid monoester containing from about 10 to 20 moles of ethylene oxide and wherein said fatty acid contains from about 12 to 18 carbon atoms.
Claim 12
Dependent Claim
24 words
The process of claim 2 wherein the monomers used in the preparation of said polymer latex are vinylidene chloride, acrylonitrile and sodium sulfoethyl methacrylate.
Claim 13
Dependent Claim
102 words
ANY REMAINDER BEING ONE OR MORE MONOETHYLENICALLY UNSATURATED COMONOMERS SELECTED FROM THE GROUP CONSISTING OF METHACRYLIC ACID, METHYL METHACRYLATE, HYDROXYETHYLACRYLATE, HYDROXYPROPYLACRYLATE, HYDROXYETHYLMETHACRYLATE, ACRYLIC ACID, ACRYLONITRILE, METHACRYLONITRILE, ACRYLAMIDE AND THE LOWE ALKYL AND DIALKYLACRYLAMIDES, ACROLEIN, METHYLVINYL KETONE AND VINYL ACETATE, SAID PROCESS COMPRISING: HAVING PRESENT IN SAID POLYMER LATEX PRIOR TO FUSION OF SAID LATEX INTO A FILM OR COATING FROM ABOUT 0.5 TO ABOUT 5 PERCENT BY WEIGHT OF LATEX POLYMER SOLIDS OF A POLYOXYETHYLENE SORBITAN FATTY ACID MONOESTER CONTAINING FROM ABOUT 10 TO 20 MOLES OF ETHYLENE OXIDE AND WHEREIN SAID FATTY ACID CONTAINS FROM ABOUT 12 TO 18 CARBON ATOMS.
Claim 14
Dependent Claim
102 words
ANY REMAINDER BEING ONE OR MORE MONOETHYLENICALLY UNSATURATED COMONOMERS SELECTED FROM THE GROUP CONSISTING OF METHACRYLIC ACID, METHYL METHACRYLATE, HYDROXYETHYLACRYLATE, HYDROXYPROPYLACRYLATE, HYDROXYETHYLMETHACRYLATE, ACRYLIC ACID, ACRYLONITRILE, METHACRYLONITRILE, ACRYLAMIDE AND THE LOWE ALKYL AND DIALKYLACRYLAMIDES, ACROLEIN, METHYLVINYL KETONE AND VINYL ACETATE, SAID PROCESS COMPRISING: HAVING PRESENT IN SAID POLYMER LATEX PRIOR TO FUSION OF SAID LATEX INTO A FILM OR COATING FROM ABOUT 0.5 TO ABOUT 5 PERCENT BY WEIGHT OF LATEX POLYMER SOLIDS OF A POLYOXYETHYLENE SORBITAN FATTY ACID MONOESTER CONTAINING FROM ABOUT 10 TO 20 MOLES OF ETHYLENE OXIDE AND WHEREIN SAID FATTY ACID CONTAINS FROM ABOUT 12 TO 18 CARBON ATOMS.
Claim 15
Dependent Claim
41 words
The process of claim 3 wherein said polymer latex is prepared from a monomer composition of about 92 parts by weight vinylidene chloride, about 8 parts by weight acrylonitrile and from about 1.4 to 1.6 parts by weight sodium sulfoethyl methacrylate.
Claim 16
Dependent Claim
46 words
The process of claim 3 wherein said polymer latex is prepared from a monomer composition of about 80 parts by weight vinylidene chloride, about 15 parts by weight butyl acrylate, about 5 parts by weight acrylonitrile and about 1.6 parts by weight of sodium sulfoethyl methacrylate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |