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US3607986A
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Vinyl chloride-propylene copolymer modified polypropylene
Assignee: FMC Corp
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Filing: 1968-12-06
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Granted: 1971-09-21
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Expires: 1988-12-06
Abstract
Abstract A polypropylene composition comprising polypropylene containing a minor amount of a vinyl chloride-propylene copolymer.
Inventors
- 👤 Patrick W Ager
- 👤 Louis A Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:38
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L27/00; C08L27/02; C08L27/04; C08L27/06; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
56 words
The polypropylene fiber or film exhibiting affinity for dispersed dyes, said fiber or film containing from 1 to 30 percent by weight of a vinyl chloride-propylene copolymer wherein the vinyl chloride-propylene copolymer is composed of at least 8 percent by weight of combined propylene and not in excess of 40 percent by weight of combined propylene.
Claim 2
Dependent Claim
25 words
The article of claim 2 wherein the vinyl chloride-propylene copolymer is comprised of about between 12 percent and 25 percent by weight of combined propylene.
Claim 3
Dependent Claim
25 words
A composition of claim 1 wherein the vinyl chloride-propylene copolymer is comprised of about between 12 percent and 25 percent by weight of combined propylene.
Claim 4
Dependent Claim
19 words
An article of claim 3 containing from about 5 to 20 percent by weight of said vinyl chloride-propylene copolymer.
Claim 5
Dependent Claim
19 words
A compositions of claim 1 containing from about 5 to 20 percent by weight of said vinyl chloride-propylene copolymer.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |