US3983294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plastic foam laminates and product formed thereby
Assignee: Stauffer Chemical Co
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Filing: 1975-06-23
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Granted: 1976-09-28
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Expires: 1995-06-23
Abstract
Abstract Plastic foam laminates are formed by heating a laminate of a base and a plastic film, said film comprising a vinyl chloride-vinyl acetate-bis(hydrocarbyl) vinylphosphonate suspension copolymer and a blowing agent, at a temperature of about 140°C. to about 160°C. The foam which is formed thereby has a fine, uniform cell quality.
Inventors
- 👤 Jagadish C. Goswami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:10
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B27/00; B32B27/06; B32B27/065; B32B27/12; B32B27/18; B32B27/22; B32B27/24; B32B5/18; C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
35 words
A method for making a plastic film laminate which comprises forming a laminate of a plastic film on a base, said film comprising a vinyl chloride-vinyl acetate-bis (hydrocarbyl) vinylphosphonate suspension copolymer and a blowing agent.
Claim 2
Independent Claim
35 words
A method for making a plastic film laminate which comprises forming a laminate of a plastic film on a base, said film comprising a vinyl chloride-vinyl acetate-bis (hydrocarbyl) vinylphosphonate suspension copolymer and a blowing agent.
Claim 3
Dependent Claim
34 words
A method as claimed in claim 1 wherein the copolymer comprises about 80% to about 90% vinyl chloride, about 2% to about 15% vinyl acetate, and about 2% to about 15% bis (hydrocarbyl) vinylphosphonate.
Claim 4
Dependent Claim
22 words
A method as claimed in claim 1 wherein the amount of blowing agent in said film is about 1% to about 20%.
Claim 5
Dependent Claim
23 words
A method as claimed in claim 1 wherein the blowing agent decomposes at a temperature of about 140° C. to about 160° C.
Claim 6
Dependent Claim
26 words
A method as claimed in claim 1 which further comprises heating said film to cause decomposition of the blowing agent and formation of a plastic foam.
Claim 7
Dependent Claim
23 words
A method as claimed in claim 5 wherein the film is heated to a temperature of about 140° C. to about 160° C.
Claim 8
Dependent Claim
34 words
A method as claimed in claim 1 wherein the copolymer comprises about 85 to about 87% vinyl chloride, about 3% to about 8% vinyl acetate, and about 5% to about 7% bis (beta-chloroethyl) vinylphosphonate.
Claim 9
Dependent Claim
24 words
A method as claimed in claim 5 wherein the film is heated to a temperature of from about 140° C. to about 160° C.
Claim 10
Dependent Claim
25 words
A method as claimed in claim 1 wherein the plastic film is calendered at a temperature of from about 110° C. to about 125° C.
Claim 11
Dependent Claim
24 words
A method as claimed in claim 1 wherein the film is calendered at a temperature of from about 115° C. to about 125° C.
Claim 12
Dependent Claim
28 words
A method as claimed in claim 1 wherein the film comprises from about 25% to about 50% by weight, based upon the weight of copolymer, of a plasticizer.
Claim 13
Dependent Claim
15 words
A method as claimed in claim 1 wherein the film further comprises a flame retardant.
Claim 14
Dependent Claim
37 words
A plastic film laminate which comprises: a. a base; and b. a plastic film attached to said base, said film comprising a suspension copolymer of vinyl chloride, vinyl acetate and bis (hydrocarbyl) vinylphosphonate and a blowing agent.
Claim 15
Dependent Claim
37 words
A plastic film laminate which comprises: a. a base; and b. a plastic film attached to said base, said film comprising a suspension copolymer of vinyl chloride, vinyl acetate and bis (hydrocarbyl) vinylphosphonate and a blowing agent.
Claim 16
Dependent Claim
47 words
A film laminate as claimed in claim 13 which comprises about 80% to about 90% by weight vinyl chloride, about 2% to about 15% by weight vinyl acetate, and about 2% to about 15% by weight bis (hydrocarbyl) vinylphosphonate, based upon the weight of the plastic film.
Claim 17
Dependent Claim
47 words
A film laminate as claimed in claim 13 which comprises about 85% to about 87% by weight vinyl chloride, about 3% to about 8% by weight vinyl acetate, and about 5% to about 7% by weight bis (beta-chloroethyl) vinylphosphonate, based on the weight of the plastic film.
Claim 18
Dependent Claim
24 words
A film laminate as claimed in claim 13 wherein the blowing agent decomposes at a temperature of about 140° C. to about 160° C.
Claim 19
Dependent Claim
25 words
A film laminate as claimed in claim 13 wherein the blowing agent is present at about 1% to about 20% by weight of the film.
Claim 20
Dependent Claim
29 words
A film laminate as claimed in claim 13 wherein the film comprises about 25% to about 50% by weight of a plasticizer based on the weight of the copolymer.
Claim 21
Dependent Claim
14 words
A film laminate as claimed in claim 13 which further comprises a flame retardant.
Claim 22
Dependent Claim
32 words
A plastic foam laminate comprising: a. a base; and b. a plastic foam attached to said base, said foam comprising a suspension copolymer of vinyl chloride, vinyl acetate and bis (hydrocarbyl) vinylphosphonate.
Claim 23
Dependent Claim
32 words
A plastic foam laminate comprising: a. a base; and b. a plastic foam attached to said base, said foam comprising a suspension copolymer of vinyl chloride, vinyl acetate and bis (hydrocarbyl) vinylphosphonate.
Claim 24
Dependent Claim
47 words
A foam laminate as claimed in claim 20 which comprises about 80 to about 90% by weight vinyl chloride, about 2 to about 15% by weight vinyl acetate and about 2% to about 15% by weight bis (hydrocarbyl) vinylphosphonate, based on the weight of the plastic foam.
Claim 25
Dependent Claim
47 words
A foam laminate as claimed in claim 20 which comprises about 85% to about 87% by weight vinyl chloride, about 3% to about 8% by weight vinyl acetate and about 5% to about 7% by weight bis (beta-chloroethyl) vinylphosphonate, based on the weight of the plastic foam.
Claim 26
Dependent Claim
14 words
A film laminate as claimed in claim 20 which further comprises a flame retardant.
Claim 27
Dependent Claim
20 words
A method as claimed in claim 1 wherein the laminate also contains an effective amount for plasticization of a plasticizer.
Claim 28
Dependent Claim
21 words
A film laminate as claimed in claim 13 wherein the laminate also contains an effective amount for plasticization of a plasticizer.
Claim 29
Dependent Claim
39 words
A suspension copolymer which comprises from about 80% to about 90%, by weight, vinyl chloride, from about 2% to about 15%, by weight, vinyl acetate, and from about 2% to about 15%, by weight, of a bis (hydrocarbyl) vinylphosphonate.
Claim 30
Dependent Claim
39 words
A suspension copolymer which comprises from about 80% to about 90%, by weight, vinyl chloride, from about 2% to about 15%, by weight, vinyl acetate, and from about 2% to about 15%, by weight, of a bis (hydrocarbyl) vinylphosphonate.
Claim 31
Dependent Claim
42 words
A copolymer as claimed in claim 26 wherein the vinyl chloride comprises about 85% to about 87%, by weight, the vinyl acetate comprises about 3% to about 8%, by weight, and the vinylphosphonate content comprises about 5% to about 7% by weight.
Claim 32
Dependent Claim
32 words
A copolymer as claimed in claim 26 wherein the vinyl chloride comprises about 87%, by weight, the vinyl acetate comprises about 7%, by weight, and the vinylphosphonate comprises about 6%, by weight.
Claim 33
Dependent Claim
14 words
A copolymer as claimed in claim 26 wherein the vinylphosphonate is bis (beta-chloroethyl) vinylphosphonate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |