Patent US4307216A successfully refreshed from Google Patents.
US4307216A
Expired / Lapsed
US
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Adhesive composition
Assignee: Taoka Chemical Co Ltd
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Filing: 1980-01-14
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Granted: 1981-12-22
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Expires: 2000-01-14
Abstract
Abstract An adhesive composition which comprises an alpha -cyanoacrylate compound with a certain ester ether compound and, preferably, a polyhydroxybenzoic acid compound. The composition is enhanced in heat shock resistance and improved in initial adhesion rate.
Inventors
- 👤 Yoshihisa Shiraishi
- 👤 Kazuhiro Nakagawa
- 👤 Chiaki Nakata
- 👤 Koiti Ohasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
C; C09; C09J; C09J4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31935
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
55 words
An adhesive composition which comprises: not less than 50% by weight based on the weight of the composition of an α-cyanoacrylate compound of the formula: ##STR4## wherein R is a C 1 -C 16 alkyl group optionally having a phenyl group or a chlorine atom substituent thereon, an allyl group or a phenyl group; and
Claim 2
Dependent Claim
55 words
An adhesive composition which comprises: not less than 50% by weight based on the weight of the composition of an α-cyanoacrylate compound of the formula: ##STR4## wherein R is a C 1 -C 16 alkyl group optionally having a phenyl group or a chlorine atom substituent thereon, an allyl group or a phenyl group; and
Claim 3
Dependent Claim
120 words
05 to 20% by weight based on the weight of the α-cyanoacrylate compound (I) of an ester compound of the formula: ##STR5## having a molecular weight of not more than 20,000, wherein X 1 is a hydrogen atom or a methyl group, X 2 is a hydrogen atom, a methyl group or a cyano group, X 3 is a hydrogen atom, --R' or --OCR" (in which R' and R" are each a C 1 -C 18 hydrocarbon group not containing any anion polymerizable group) but when X 2 is a cyano group, X 3 is not a hydrogen atom, l and m are each zero or a positive integer but l+m is not zero and n is a positive integer.
Claim 4
Dependent Claim
120 words
05 to 20% by weight based on the weight of the α-cyanoacrylate compound (I) of an ester compound of the formula: ##STR5## having a molecular weight of not more than 20,000, wherein X 1 is a hydrogen atom or a methyl group, X 2 is a hydrogen atom, a methyl group or a cyano group, X 3 is a hydrogen atom, --R' or --OCR" (in which R' and R" are each a C 1 -C 18 hydrocarbon group not containing any anion polymerizable group) but when X 2 is a cyano group, X 3 is not a hydrogen atom, l and m are each zero or a positive integer but l+m is not zero and n is a positive integer.
Claim 5
Dependent Claim
16 words
The composition according to claim 1, wherein the α-cyanoacrylate compound (I) is a lower alkyl α-cyanoacrylate.
Claim 6
Dependent Claim
18 words
The composition according to claim 1, wherein the ester compound (II) is a monoacrylate of a glycol monoether.
Claim 7
Dependent Claim
45 words
The composition according to claim 1, which comprises additionally a polyhydroxybenzoic acid compound of the formula: ##STR6## wherein R"' is a hydrogen atom or a C 1 -C 18 group optionally having a methoxy group substituent and p is an integer of 2 to 5.
Claim 8
Dependent Claim
24 words
The composition according to claim 4, wherein the polyhydroxybenzoic acid compound (III) is the one wherein R"' is lower alkyl and p is 3.
Claim 9
Dependent Claim
28 words
The composition according to claim 4, wherein the content of the polyhydroxybenzoic acid compound (III) is 1 to 5,000 ppm to the weight of the α-cyanoacrylate compound (I).
References Cited (Backward Citations)
US3559652A
Cited
US4182823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |