Patent US2765146A successfully refreshed from Google Patents.
Patent US4228245A successfully refreshed from Google Patents.
US4228245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam rubber polyblend
Assignee: Solutia Inc
•
Filing: 1979-07-02
•
Granted: 1980-10-14
•
Expires: 1999-07-02
Abstract
Abstract Foamed polyblends comprising a filled styrene-butadiene rubber are rendered attractively flame-resistant (e.g. for use as carpet underlay) without loss of "green strength" needed during processing (e.g. in a Banbury mixer) by blending therewith about 10-50 parts per hundred, based on the rubber, of a pre-fused vinyl chloride polymer plastisol.
Inventors
- 👤 Albert W. Morgan
- 👤 Roland G. Ribaudo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:37
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08L; C08L21/00; C08L9/00; C08L9/06; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; C08J2309/00; C08J2309/06; C08J2427/00; C08K; C08K3/00; C08K3/34; C08K3/346; C08K5/00; C08K5/04; C08K5/10; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08L27/00; C08L27/02; C08L27/04; C08L27/06; D06N2203/00; D06N2203/04; D06N2203/045; D06N2203/047; D06N2205/00; D06N2205/02; D06N2205/026; D06N2205/04; D06N2209/00; D06N2209/06; D06N2209/067; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S521/00; Y10S521/907; Y10S521/909; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
61 words
A foamed polyblend composition comprising a filled styrene-butadiene rubber blended with between about 10 and about 50 parts per hundred by weight, based on said rubber, of a vinyl chloride polymer plastisol which has been fused before being blended with said rubber, the weight ratio of said plastisol to the filler in said rubber being between about 0.09 and about 0.25.
Claim 2
Dependent Claim
61 words
A foamed polyblend composition comprising a filled styrene-butadiene rubber blended with between about 10 and about 50 parts per hundred by weight, based on said rubber, of a vinyl chloride polymer plastisol which has been fused before being blended with said rubber, the weight ratio of said plastisol to the filler in said rubber being between about 0.09 and about 0.25.
Claim 3
Dependent Claim
24 words
Composition of claim 1, said plastisol having been fused at a temperature of at least about 140° C. before being blended with said rubber.
Claim 4
Dependent Claim
13 words
Composition of claim 1 wherein the polymer in said plastisol is polyvinyl chloride.
Claim 5
Dependent Claim
16 words
Composition of claim 1 wherein the polymer in said plastisol is a vinyl chloride/vinyl acetate interpolymer.
Claim 6
Dependent Claim
15 words
Composition of claim 1 wherein the polymer in said plastisol is an ethylene/vinyl chloride interpolymer.
Claim 7
Dependent Claim
16 words
Composition of claim 1 wherein the polymer in said plastisol is an ethylene/vinyl chloride/vinyl acetate interpolymer.
Claim 8
Dependent Claim
14 words
Composition of claim 1 wherein said ratio is between about 0.1 and about 0.2.
Claim 9
Dependent Claim
25 words
Composition of claim 7, said plastisol having been fused at a temperature between about 140° and about 200° C. before being blended with said rubber.
Claim 10
Dependent Claim
22 words
Composition of claim 8 containing between about 20 and about 40 parts per hundred by weight of plastisol based on said rubber.
Claim 11
Dependent Claim
14 words
Composition of claim 8 wherein said ratio is between about 0.12 and about 0.14.
Claim 12
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 1.
Claim 13
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 2.
Claim 14
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 3.
Claim 15
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 4.
Claim 16
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 5.
Claim 17
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 6.
Claim 18
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 7.
Claim 19
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 8.
Claim 20
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 9.
Claim 21
Dependent Claim
9 words
A carpet underlay comprising the composition of claim 10.
Claim 22
Dependent Claim
46 words
A process for producing a flame-resistant styrene-butadiene foam rubber which comprises blending styrene-butadiene rubber with from about 10 to about 50 parts per hundred by weight, based on said rubber, of a vinyl chloride polymer plastisol which has been fused before being blended with said rubber.
Claim 23
Dependent Claim
46 words
A process for producing a flame-resistant styrene-butadiene foam rubber which comprises blending styrene-butadiene rubber with from about 10 to about 50 parts per hundred by weight, based on said rubber, of a vinyl chloride polymer plastisol which has been fused before being blended with said rubber.
Claim 24
Dependent Claim
38 words
Process of claim 21 wherein said rubber contains a filler and the amount of said plastisol blended with said rubber is such that the weight ratio of plastisol to said filler is between about 0.09 and about 0.25.
Claim 25
Dependent Claim
52 words
A process which comprises preparing a vinyl chloride polymer plastisol, fusing said plastisol at a temperature of at least about 140° C., blending about 10 to 50 parts by weight of the fused plastisol with about 100 parts by weight of a styrene-butadiene rubber containing a filler, and foaming the resulting blend.
Claim 26
Dependent Claim
52 words
A process which comprises preparing a vinyl chloride polymer plastisol, fusing said plastisol at a temperature of at least about 140° C., blending about 10 to 50 parts by weight of the fused plastisol with about 100 parts by weight of a styrene-butadiene rubber containing a filler, and foaming the resulting blend.
Claim 27
Dependent Claim
34 words
Process of claim 23 wherein the amount of fused plastisol blended with said rubber is such that the weight ratio of plastisol to the filler in said rubber is between about 0.09 and 0.25.
Claim 28
Dependent Claim
26 words
Composition of claim 1, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
Claim 29
Dependent Claim
26 words
Composition of claim 2, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
Claim 30
Dependent Claim
26 words
Composition of claim 8, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
Claim 31
Dependent Claim
26 words
Composition of claim 9, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
Claim 32
Dependent Claim
26 words
Process of claim 21, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
Claim 33
Dependent Claim
26 words
Process of claim 23, said plastisol having been prepared using plasticizer selected from dialkyl and alkyl aryl phthalates, alkyl diaryl and triaryl phosphates, and mixtures thereof.
References Cited (Backward Citations)
US2743931A
Cited
US2849028A
Cited
US2840534A
Cited
US3322858A
Cited
US3522330A
Cited
US3563402A
Cited
US3641208A
Cited
US3695477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |