Patent US4037020A successfully refreshed from Google Patents.
US4037020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive comprising post-chlorinated polyethylene and polyvinyl chloride
Assignee: Sumitomo Bakelite Co Ltd
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Filing: 1975-12-22
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Granted: 1977-07-19
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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
2026-11-01 04:14
CPC Classifications
C; C09; C09J; C09J127/00; C09J127/02; C09J127/04; C09J127/06; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928; Y10T428/31938
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
101 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises co-extruding three layers of a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 2
Independent Claim
101 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises co-extruding three layers of a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 3
Independent Claim
104 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises pressing three layers, in order of layers, a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 4
Independent Claim
104 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises pressing three layers, in order of layers, a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 5
Independent Claim
105 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises heat-sealing three layers of, in order of layers, a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 6
Independent Claim
105 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises heat-sealing three layers of, in order of layers, a polyvinyl chloride, an adhesive and an olefinic polymer to produce a three-layered laminate of, in order of layers, polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500.
Claim 7
Independent Claim
121 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and pressing said polyvinyl chloride and said olefinic polymer with the adhesive in between to produce a three-layered laminate of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000 and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 8
Independent Claim
121 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and pressing said polyvinyl chloride and said olefinic polymer with the adhesive in between to produce a three-layered laminate of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000 and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 9
Independent Claim
122 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and heat sealing said polyvinyl chloride and said olefinic polymer with the adhesive in between to produce a three-layered laminate of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 10
Independent Claim
122 words
A method of adhering polyvinyl chloride and an olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and heat sealing said polyvinyl chloride and said olefinic polymer with the adhesive in between to produce a three-layered laminate of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 11
Independent Claim
129 words
A method of adhering polyvinyl chloride and olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and extruding either said polyvinyl chloride and said olefinic polymer which has not been coated with the adhesive layer to produce a three-layered laminate, in order of layers, of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 12
Independent Claim
129 words
A method of adhering polyvinyl chloride and olefinic polymer which comprises coating a liquid adhesive on at least one surface of polyvinyl chloride or olefinic polymer followed by drying said adhesive, and extruding either said polyvinyl chloride and said olefinic polymer which has not been coated with the adhesive layer to produce a three-layered laminate, in order of layers, of polyvinyl chloride, adhesive and olefinic polymer, said adhesive comprising a. 1 to 99% by weight of post-chlorinated polyethylene having a specific gravity of 1.00 to 1.35, a chlorine content of 5 to 50% and a mean molecular weight of from about 20,000 to 200,000, and b. 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of from about 300 to 2,500 in a solvent.
Claim 13
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 1.
Claim 14
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 2.
Claim 15
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 3.
Claim 16
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 4.
Claim 17
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 5.
Claim 18
Dependent Claim
12 words
A three-layered composite material prepared by the method according to claim 6.
Claim 19
Dependent Claim
27 words
The method according to claim 1, wherein said adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene and 100 parts by weight of polyvinyl chloride.
Claim 20
Dependent Claim
27 words
The method according to claim 2, wherein said adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene and 100 parts by weight of polyvinyl chloride.
Claim 21
Dependent Claim
27 words
The method according to claim 3, wherein said adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene and 100 parts by weight of polyvinyl chloride.
Claim 22
Dependent Claim
26 words
The method according to claim 4, wherein the liquid adhesive has an amount of solvent of about 98 to 70% by weight in the liquid adhesive.
Claim 23
Dependent Claim
26 words
The method according to claim 15, wherein the liquid adhesive has an amount of solvent of about 98 to 70% by weight in the liquid adhesive.
Claim 24
Dependent Claim
26 words
The method according to claim 6, wherein the liquid adhesive has an amount of solvent of about 98 to 70% by weight in the liquid adhesive.
Claim 25
Dependent Claim
30 words
The method according to claim 4, wherein said liquid adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene 100 parts by weight of polyvinyl chloride and a solvent.
Claim 26
Dependent Claim
30 words
The method according to claim 5, wherein said liquid adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene, 100 parts by weight of polyvinyl chloride and a solvent.
Claim 27
Dependent Claim
30 words
The method according to claim 6, wherein said liquid adhesive comprises 2 to 50 parts by weight of post-chlorinated polyethylene, 100 parts by weight of polyvinyl chloride and a solvent.
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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) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |