Patent US5530075A successfully refreshed from Google Patents.
US5530075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable resin composition
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1994-08-15
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Granted: 1996-06-25
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Expires: 2014-08-15
Abstract
Abstract The instant invention pertains to a curable resin composition comprised of A) 100 parts by weight curable resin, and B) 0.1-500 parts by weight of an organopolysiloxane having organic groups that contain epoxy groups, which is expressed by the formula: <IMAGE> wherein R1 is a univalent hydrocarbon group excluding alkenyl groups, R2 is a hydrogen atom or a univalent hydrocarbon group excluding alkenyl groups, R3 is an alkoxysilylalkyl group or an organic group that contains epoxy groups, a is 0 or a positive integer, b is a positive integer and c is a positive integer, where a/c has the value of 0 to 4, b/c has the value of 0.05 to 4 and (a+b)/c has the value of 0.2 to 4. The curable resin composition of the instant invention has superior flowability that produces a hardened resin with superior flexibility and adhesion.
Inventors
- 👤 Yoshitsugu Morita
- 👤 Noriyasu Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:11
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/06; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/306; C08L101/00; C08L83/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
179 words
A curable resin composition comprising (A) 100 parts by weight curable resin selected from the group consisting of phenol resins, formaldehyde resins, xylene resins, xylene formaldehyde resins, ketone formaldehyde resins, furan resins, urea resins, imide resins, melamine resins, alkyd resins, unsaturated polyester resins, aniline resins, sulfonamide resins, epoxy resins, and copolymer resins thereof and mixtures thereof; and (B) 0.1-500 parts by weight of an organopolysiloxane having organic groups that contain epoxy groups, represented by the formula: ##STR22## wherein R 1 is a univalent hydrocarbon group except R 1 is not an alkenyl group; R 2 is selected from a hydrogen atom or a univalent hydrocarbon group except R 2 is not an alkenyl group; R 3 is selected from an alkoxysilylalkyl group or an organic group that contains epoxy groups; a is selected from 0 or a positive integer; b is a positive integer; and c is a positive integer; with the proviso that a/c has the value of 0 to 4, b/c has the value of 0.05 to 4 and (a+b)/c has the value of 0.2 to 4.
Claim 2
Dependent Claim
179 words
A curable resin composition comprising (A) 100 parts by weight curable resin selected from the group consisting of phenol resins, formaldehyde resins, xylene resins, xylene formaldehyde resins, ketone formaldehyde resins, furan resins, urea resins, imide resins, melamine resins, alkyd resins, unsaturated polyester resins, aniline resins, sulfonamide resins, epoxy resins, and copolymer resins thereof and mixtures thereof; and (B) 0.1-500 parts by weight of an organopolysiloxane having organic groups that contain epoxy groups, represented by the formula: ##STR22## wherein R 1 is a univalent hydrocarbon group except R 1 is not an alkenyl group; R 2 is selected from a hydrogen atom or a univalent hydrocarbon group except R 2 is not an alkenyl group; R 3 is selected from an alkoxysilylalkyl group or an organic group that contains epoxy groups; a is selected from 0 or a positive integer; b is a positive integer; and c is a positive integer; with the proviso that a/c has the value of 0 to 4, b/c has the value of 0.05 to 4 and (a+b)/c has the value of 0.2 to 4.
Claim 3
Dependent Claim
30 words
A curable resin composition as claimed in claim 1, wherein the curable resin (A) is a curable resin selected from the group consisting of epoxy resins, phenol resins, imide resins.
Claim 4
Dependent Claim
18 words
A curable resin composition as claimed in claim 1, wherein there are 0.5 to 100 parts of (B).
Claim 5
Dependent Claim
15 words
A curable resin composition as claimed in claim 1, wherein there is additionally a filler.
Claim 6
Dependent Claim
16 words
A curable resin composition as claimed in claim 1, wherein there is additionally a curing agent.
Claim 7
Dependent Claim
16 words
A curable resin composition as claimed in claim 1, wherein there is additionally a curing accelerator.
Claim 8
Dependent Claim
16 words
A curable resin composition as claimed in claim 1, wherein there is additionally a ester-based wax.
Claim 9
Dependent Claim
14 words
The composition produced by curing the curable resin composition as claimed in claim 1.
Claim 10
Dependent Claim
19 words
A curable resin composition as claimed in claim 16 wherein said composition is capable of being cured by heat.
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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) | 1999-06-25 | 1999-12-25 | 2000-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-25 | 2003-12-25 | 2004-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-25 | 2007-12-25 | 2008-06-25 | $7700.00 | Window Closed / Lapsed |