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Patent US4377490A successfully refreshed from Google Patents.
US4377490A
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Adhesive composition
Assignee: Taoka Chemical Co Ltd
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Filing: 1981-09-09
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Granted: 1983-03-22
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Expires: 2001-09-09
Abstract
Abstract An adhesive composition enhanced in initial adhesion strength which comprises (A) an alpha -cyanoacrylate ester, (B) at least one chosen from aliphatic polyols and their derivatives and polyethers and their derivatives and (C) at least one chosen from aromatic polyols and their derivatives and carboxylic acids and their derivatives.
Inventors
- 👤 Yoshihisa Shiraishi
- 👤 Kazuhiro Nakagawa
- 👤 Chiaki Nakata
- 👤 Koiti Ohasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:22
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; 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: 15
Claim 1
Independent Claim
43 words
An adhesive composition which comprises (A) an α-cyanoacrylate ester, (B) at least one chosen from aliphatic polyols and their derivatives and polyethers and their derivatives and (C) at least one chosen from aromatic polyols and their derivatives and carboxylic acids and their derivatives.
Claim 2
Dependent Claim
43 words
An adhesive composition which comprises (A) an α-cyanoacrylate ester, (B) at least one chosen from aliphatic polyols and their derivatives and polyethers and their derivatives and (C) at least one chosen from aromatic polyols and their derivatives and carboxylic acids and their derivatives.
Claim 3
Dependent Claim
23 words
The composition according to claim 1, wherein the α-cyanoacrylate ester is the one of the formula: ##STR4## wherein R is an ester residue.
Claim 4
Dependent Claim
23 words
The composition according to claim 2, wherein the ester residue is a substituted or unsubstituted, saturated or unsaturated, cyclic or non-cyclic hydrocarbon group.
Claim 5
Dependent Claim
20 words
The composition according to claim 2, wherein the ester residue is a substituted or unsubstituted, saturated or unsaturated heterocyclic group.
Claim 6
Dependent Claim
25 words
The composition according to claim 2, wherein R is C 1 -C 16 alkyl, C 1 -C 4 alkoxy(C 1 -C 4 )alkyl or tetrahydrofurfuryl.
Claim 7
Dependent Claim
27 words
The composition according to claim 1, wherein the aliphatic polyols and their derivatives are alkane polyols, alkene polyols and halogenated alkane polyols, and their esters and ethers.
Claim 8
Dependent Claim
65 words
The composition according to claim 1, wherein the polyethers and their derivatives are those having the repeating units of the formula: ##STR5## wherein X 1 and X 2 are each hydrogen, halogen, hydroxyl, alkyl, alkenyl, aryl or aralkyl, the latter four bearing optionally any substituent thereon, p is an integer of not less than 1 and q is an integer of not less than 2.
Claim 9
Dependent Claim
40 words
The composition according to claim 1, wherein the aromatic polyols and their derivatives are those of the formula: ##STR6## wherein m is an integer of 2 or 3 and at least two hydroxyl groups are present at the adjacent positions.
Claim 10
Dependent Claim
78 words
The composition according to claim 1, wherein the carboxylic acids and their derivatives are those of the formula: A(COOR').sub.n wherein A is a hydrocarbon or heterocyclic compound residue which may be substituted or not, R' is a hydrogen atom or a substituted or unsubstituted hydrocarbon group and n is an integer of not less than 1, provided that at least one R' is a hydrogen atom except the case that A bears two or more phenolic hydroxyl groups.
Claim 11
Dependent Claim
15 words
The composition according to claim 9, wherein the carboxylic acids and their derivatives are anhydrides.
Claim 12
Dependent Claim
28 words
The composition according to claim 1, wherein the content of the component (A) is not less than 50% by weight based on the total weight of the composition.
Claim 13
Dependent Claim
28 words
The composition according to claim 11, wherein the content of the component (A) is not less than 80% by weight based on the total weight of the composition.
Claim 14
Dependent Claim
28 words
The composition according to claim 1, wherein the content of the component (B) is from 0.05 to 20% by weight based on the weight of the component (A).
Claim 15
Dependent Claim
28 words
The composition according to claim 1, wherein the content of the component (C) is from 0.0001 to 0.5% by weight based on the weight of the component (A).
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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |