US4273145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight vinyl acrylic combined with low molecular weight vinyl acetate-maleate for controlled permanent tack and method of making same
Assignee: Polymerics Inc
•
Filing: 1979-06-13
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Granted: 1981-06-16
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Expires: 1999-06-13
Abstract
Abstract An unsupported decorative film of a polymeric composition having controlled permanent tack, the polymeric composition being a blend of 86 to 88% of a polyvinyl acetate-acrylic copolymer of high molecular weight and low residual tack and 12 to 14% of a polyvinyl acetate-maleate copolymer of low molecular weight and high residual tack. Other chemicals may be added to the blend to control color, viscosity and resistance to microorganisms. A casted film of this composition adheres to most surfaces, but may be forcefully removed and relocated. The film is used for decorative art pieces.
Inventors
- 👤 David Lester
- 👤 Robert R. Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
C; C08; C08L; C08L31/00; C08L31/02; C08L31/04; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08L2205/00; C08L2205/02; C08L2666/00; C08L2666/02; C08L2666/04; C09J2301/00; C09J2301/30; C09J2301/302
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A polymeric composition having controlled permanent tack for use in making unsupported decorative films comprising: 86 to 88 parts of a vinyl acetate-acrylic copolymer of high molecular weight in excess of one million and low residual tack; 14 to 12 parts of a vinyl acetate-maleate copolymer of low molecular weight in the range of 55-35,000 and high residual tack, wherein said vinyl acetate-acrylic copolymer comprises, ______________________________________
Ingredients Parts By Weight
______________________________________
Vinyl acetate 77.0
Itaconic acid 1.5
Ethyl acrylate 12.0
Glycidyl methacrylate
2.5
Thiodiethylene glycol
4.0
Sodium Lauryl sulfate
2.5
Ammonium persulfate 0.4
Water 100.0 T.T.S 50%
______________________________________ and, wherein said polyvinyl acetate-maleate copolymer comprises, ______________________________________
Ingredients Parts by Weight
______________________________________
Vinyl acetate 56.0
Methacrylic acid 1.5
Dioctyl maleate 37.0
Sodium lauryl sulfate
3.5
Hydroxyethyl cellulose
1.5
Ammonium persulfate
0.6
Water 100.0
______________________________________
Claim 2
Dependent Claim
133 words
A polymeric composition having controlled permanent tack for use in making unsupported decorative films comprising: 86 to 88 parts of a vinyl acetate-acrylic copolymer of high molecular weight in excess of one million and low residual tack; 14 to 12 parts of a vinyl acetate-maleate copolymer of low molecular weight in the range of 55-35,000 and high residual tack, wherein said vinyl acetate-acrylic copolymer comprises, ______________________________________
Ingredients Parts By Weight
______________________________________
Vinyl acetate 77.0
Itaconic acid 1.5
Ethyl acrylate 12.0
Glycidyl methacrylate
2.5
Thiodiethylene glycol
4.0
Sodium Lauryl sulfate
2.5
Ammonium persulfate 0.4
Water 100.0 T.T.S 50%
______________________________________ and, wherein said polyvinyl acetate-maleate copolymer comprises, ______________________________________
Ingredients Parts by Weight
______________________________________
Vinyl acetate 56.0
Methacrylic acid 1.5
Dioctyl maleate 37.0
Sodium lauryl sulfate
3.5
Hydroxyethyl cellulose
1.5
Ammonium persulfate
0.6
Water 100.0
______________________________________
Claim 3
Dependent Claim
31 words
The polymeric composition of claim 1 further comprising: ______________________________________
Ingredients Parts By Weight
______________________________________
Hydroxethyl cellulose
0.08-0.14
Poly acrylic acid 0.035-0.15
Pigment Colorant Dispersion
2-10
Fungicide 0.004-0.10
Ammonium Hydroxide 0.14
______________________________________
Claim 4
Dependent Claim
54 words
A process for casting a polymeric film with controlled permanent tack with the composition of claim 1 which comprises: edging a sheet of non-porous material in the shape of desired film; pouring said polymeric composition on said sheet within said edges; allowing said polymeric composition to set; removing said edging and said non-porous sheet.
Claim 5
Dependent Claim
55 words
A process for casting a polymeric film with controlled permanent tack with the composition of claim 2 which comprises: edging a sheet of non-porous material in the shape of the desired film; pouring said polymeric composition on said sheet within said edges; allowing said polymeric composition to set; removing said edging and said non-porous sheet.
Claim 6
Independent Claim
319 words
A method of making a film forming polymeric composition by emulsion polymerization under a blanket of nitrogen comprising the steps of: ______________________________________
charging 100 parts by weight of water to a reactor;
adding 14 parts by weight of vinyl acetate;
adding 1.5 parts by weight of itaconic acid;
adding 2.5 parts by weight of glycidyl methacrylate;
adding 4.0 parts by weight of thiodiethylene glycol;
adding 2.5 parts by weight of sodium lauryl sulfate; and
adding 0.4 parts by weight of ammonium persulfate;
______________________________________ heating this mixture to 84° C.; adding a mixture of 63 parts by weight of vinyl acetate and 12 parts by weight of ethyl acrylate dropwise to the reactor over forty-five minutes while maintaining the temperature at 84° C.; cooling and filtering this mixture after its temperature reaches 94° C.; thereby providing a vinyl acetate-acrylic copolymer of high molecular weight and low residual tack, hereinafter referred to as polymer one; ______________________________________
charging 100 parts by weight of water to a reactor;
adding 8 parts by weight of vinyl acetate;
adding 1.5 parts by weight of methacrylic acid;
adding 5.5 parts by weight of dioctyl maleate;
adding 3.5 parts by weight of sodium lauryl sulfate;
adding 1.5 parts by weight of hydroxy ethyl cellulose; and
adding 0.6 parts by weight of ammonium persulfate;
______________________________________ heating this mixture to 84° C.; adding a mixture of 48 parts by weight of vinyl acetate and 31 parts by weight of dioctyl maleate dropwise to the reactor over a period of 90 minutes while maintaining the temperature at 84° C.; cooling and filtering this mixture after the temperature rises to 96° C.; thereby providing a vinyl acetate-maleate copolymer of low molecular weight and high residual tack, hereinafter referred to as polymer two; combining 86 to 88 parts by weight of said polymer one with 14 to 12 parts by weight of said polymer two to provide said film without polymeric composition.
Claim 7
Independent Claim
319 words
A method of making a film forming polymeric composition by emulsion polymerization under a blanket of nitrogen comprising the steps of: ______________________________________
charging 100 parts by weight of water to a reactor;
adding 14 parts by weight of vinyl acetate;
adding 1.5 parts by weight of itaconic acid;
adding 2.5 parts by weight of glycidyl methacrylate;
adding 4.0 parts by weight of thiodiethylene glycol;
adding 2.5 parts by weight of sodium lauryl sulfate; and
adding 0.4 parts by weight of ammonium persulfate;
______________________________________ heating this mixture to 84° C.; adding a mixture of 63 parts by weight of vinyl acetate and 12 parts by weight of ethyl acrylate dropwise to the reactor over forty-five minutes while maintaining the temperature at 84° C.; cooling and filtering this mixture after its temperature reaches 94° C.; thereby providing a vinyl acetate-acrylic copolymer of high molecular weight and low residual tack, hereinafter referred to as polymer one; ______________________________________
charging 100 parts by weight of water to a reactor;
adding 8 parts by weight of vinyl acetate;
adding 1.5 parts by weight of methacrylic acid;
adding 5.5 parts by weight of dioctyl maleate;
adding 3.5 parts by weight of sodium lauryl sulfate;
adding 1.5 parts by weight of hydroxy ethyl cellulose; and
adding 0.6 parts by weight of ammonium persulfate;
______________________________________ heating this mixture to 84° C.; adding a mixture of 48 parts by weight of vinyl acetate and 31 parts by weight of dioctyl maleate dropwise to the reactor over a period of 90 minutes while maintaining the temperature at 84° C.; cooling and filtering this mixture after the temperature rises to 96° C.; thereby providing a vinyl acetate-maleate copolymer of low molecular weight and high residual tack, hereinafter referred to as polymer two; combining 86 to 88 parts by weight of said polymer one with 14 to 12 parts by weight of said polymer two to provide said film without polymeric composition.
Claim 8
Dependent Claim
59 words
The method of claim 5 further comprising the steps of: adding to said blend 0.08 to 0.14 parts by weight of hydroxethyl cellulose, 0.035 to 0.15 parts by weight of polyacrylic acid, 2 to 10 parts by weight of a pigment color dispersion, 0.004 to 0.10 parts by weight of fungicide, and 0.14 parts by weight of ammonium hydroxide.
Claim 9
Dependent Claim
40 words
The method of claim 6 further comprising the steps of: edging a pattern on a sheet of non-porous material; pouring said blend into said edged pattern; allowing said blend to set; removing said set blend from said edged, non-porous material.
Claim 10
Dependent Claim
33 words
The method of claim 6, further comprising the steps of applying said blend to a fingernail or toenail, allowing said blend to set, and removing said set blend from said fingernail or toenail.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |