US3983070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric adhesive
Assignee: Raychem Corp
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Filing: 1973-04-24
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Granted: 1976-09-28
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Expires: 1993-04-24
Abstract
Abstract This invention relates to adhesives which are particularly useful in bonding polymeric materials used in the encapsulation and termination of insulated electrical conductors. The adhesive comprises a polar copolymer of an alpha -olefin, said copolymer preferably having an acid number in the range of from 4 to 40 and containing pendant ester, amide, ketonic, anhydride or carboxylic acid groups and an inorganic silicon-containing compound which has been chemically treated with an organosilicon compound.
Inventors
- 👤 Richard John Penneck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C08; C08K; C08K3/00; C08K3/34; C08K9/00; C08K9/04; C08K9/06; C08L; C08L83/00; C08L83/04; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/0846; C09J123/0853; C08L2205/00; C08L2205/03; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/18; C08L67/00; C08L67/04
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
47 words
An adhesive comprising: a. a polar copolymer of an α-olefin, and b. in an amount of up to about 20% by weight based on the total weight of the adhesive, said filler comprising an inorganic silicon compound containing the Si-O-Si group which has been treated with trimethylchlorosilane.
Claim 2
Dependent Claim
47 words
An adhesive comprising: a. a polar copolymer of an α-olefin, and b. in an amount of up to about 20% by weight based on the total weight of the adhesive, said filler comprising an inorganic silicon compound containing the Si-O-Si group which has been treated with trimethylchlorosilane.
Claim 3
Dependent Claim
18 words
An adhesive as claimed in claim 1, which contains from 3 to 10% by weight of component (b).
Claim 4
Dependent Claim
14 words
An adhesive as claimed in claim 1, wherein component (a) is a ethylene copolymer.
Claim 5
Dependent Claim
17 words
An adhesive as claimed in claim 3, wherein the ethylene copolymer is an ethylene/vinyl acetate/carboxylic acid terpolymer.
Claim 6
Dependent Claim
18 words
An adhesive as claimed in claim 4, wherein component (a) is an ethylene (83%)/vinyl acetate 12%/methacrylic acid terpolymer.
Claim 7
Dependent Claim
24 words
An adhesive as claimed in claim 3, wherein component (a) is a copolymer of ethylene and an olefinically unsaturated carboxylic acid or ester thereof.
Claim 8
Dependent Claim
15 words
An adhesive as claimed in claim 3, wherein component (a) is an ethylene/vinyl acetate copolymer.
Claim 9
Dependent Claim
14 words
An adhesive as claimed in claim 1, wherein component (a) is a graft copolymer.
Claim 10
Dependent Claim
22 words
An adhesive as claimed in claim 1, wherein component (a) has an acid number in the range of from 4 to 40.
Claim 11
Dependent Claim
22 words
An adhesive as claimed in claim 8, wherein component (a) has an acid number in the range of from 20 to 40.
Claim 12
Dependent Claim
20 words
An adhesive as claimed in claim 1, wherein component (a) has a melt flow index of not more than 10.
Claim 13
Dependent Claim
20 words
An adhesive as claimed in claim 10, wherein component (a) has a melt flow index of not more than 5.
Claim 14
Dependent Claim
29 words
An adhesive as claimed in claim 1, wherein said inorganic silicon compound in component (b) is a silica having a specific surface area of about 200 m 2 /g.
Claim 15
Dependent Claim
21 words
An adhesive as claimed in claim 1, which also comprises one or more other polymeric components to improve the flow properties.
Claim 16
Dependent Claim
18 words
An adhesive as claimed in claim 14, wherein a polycaprolactone polymer is included to improve the flow properties.
Claim 17
Dependent Claim
24 words
An adhesive as claimed in claim 1, which also comprises one or more additive from pigments, antioxidants, processing aids, adhesion promoters and tackifying resins.
Claim 18
Dependent Claim
25 words
An adhesive as claimed in claim 1, wherein the specific surface area of said inorganic silicon compound is at least about 50 m 2 /g.
Claim 19
Dependent Claim
25 words
An adhesive as claimed in claim 17, wherein the specific surface area of said inorganic silicon compound is at least about 100 m 2 /g.
References Cited (Backward Citations)
CA680105A
Cited
US3290267A
Cited
US3620878A
Cited
GB1284082A
Cited
GB1303432A
Cited
US3691120A
Cited
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 |