US4089726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive comprising post-chlorinated polyethylene and polyvinyl chloride
Assignee: Sumitomo Bakelite Co Ltd
•
Filing: 1975-12-22
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Granted: 1978-05-16
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Expires: 1995-12-22
Abstract
Abstract An adhesive composition particularly suitable for adhering polyvinyl chloride and an olefinic polymer comprising 1 to 99% by weight of post-chlorinated polyethylene having a mean molecular weight of about 20,000 to 200,000, a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% by weight and 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of about 300 to 2,500.
Inventors
- 👤 Ko Ishii
- 👤 Tadamasa Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:19
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/70; B29C66/71; C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2027/00; B29K2027/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
A method of adhering a thermoplastic resin and an olefinic polymer which comprises pressing under heating a thermoplastic resin comprising (a) 2 to 50 parts by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000 (b) 100 parts by weight of polyvinyl chloride having a mean degree of polymerization from about 300 to 2,500, and said olefinic polymer.
Claim 2
Independent Claim
80 words
A method of adhering a thermoplastic resin and an olefinic polymer which comprises pressing under heating a thermoplastic resin comprising (a) 2 to 50 parts by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000 (b) 100 parts by weight of polyvinyl chloride having a mean degree of polymerization from about 300 to 2,500, and said olefinic polymer.
Claim 3
Dependent Claim
23 words
The method as claimed in claim 1, wherein said olefinic polymer is extruded through an extruder and then laminated with said thermoplastic resin.
Claim 4
Dependent Claim
17 words
The method as claimed in claim 1, wherein said thermoplastic resin and said olefinic polymer are co-extruded.
Claim 5
Dependent Claim
18 words
The method as claimed in claim 1, wherein said thermoplastic resin and said olefinic polymer are heat sealed.
Claim 6
Dependent Claim
16 words
The method as claimed in claim 1, wherein said adhesion is conducted using a pressing machine.
Claim 7
Dependent Claim
27 words
The method of claim 1 wherein at least one of said post-chlorinated polyethylene or said polyvinyl chloride is performed or both thereof are co-extruded into a laminate.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein pretreatment or priming agents are not employed.
Claim 9
Dependent Claim
16 words
The method of claim 1 wherein a non-crystalline chlorinated polyethylene is employed as said post-chlorinated polyethylene.
References Cited (Backward Citations)
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US3006889A
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US3022263A
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US3184358A
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US3355519A
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |