US5017626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visible light-curing polyester resin composition
Assignee: NOF Corp
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Filing: 1988-09-30
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Granted: 1991-05-21
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Expires: 2008-09-30
Abstract
Abstract A visible light-curing polyester resin composition comprises an unsaturated polyester resin and a photocuring agent composed of an α-diketone, a benzyidimethyl ketal, and at least one member selected from the group consisting of (1) 2-(dimethylamino)-ethyl benzoate, (2) 2-(dimethylamino)-ethyl benzoate plus a peroxy ketal, and (3) a peroxy ketal plus a tertiaryamine.
Inventors
- 👤 Yoshihiro Tomura
- 👤 Shigeki Banno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:32
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0407; C08F299/0421; C08F299/0428; C08F299/0435
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A visible light-curing polyester resin composition, consisting essentially of: 100 parts by weight of an unsaturated polyester resin prepared by reacting an ethylenically unsaturated dibasic acid or anhydride with a glycol, and a polymerizable vinyl monomer and a photocuring agent consisting of: (a) 0.1 to 5 parts by weight of an α-diketone, (b) 0.1 to 5 parts by weight of a benzildimethyl ketal, and (c) a member selected from the group consisting of: (i) 2 to 15 parts by weight of 2-(dimethylamino)-ethyl benzoate plus 0.01 to 5 parts by weight of a peroxy ketal, and (ii) 0.01 to 5 parts by weight of a peroxy ketal plus 0.1 to 10 parts by weight of a tertiary amine.
Claim 2
Dependent Claim
117 words
A visible light-curing polyester resin composition, consisting essentially of: 100 parts by weight of an unsaturated polyester resin prepared by reacting an ethylenically unsaturated dibasic acid or anhydride with a glycol, and a polymerizable vinyl monomer and a photocuring agent consisting of: (a) 0.1 to 5 parts by weight of an α-diketone, (b) 0.1 to 5 parts by weight of a benzildimethyl ketal, and (c) a member selected from the group consisting of: (i) 2 to 15 parts by weight of 2-(dimethylamino)-ethyl benzoate plus 0.01 to 5 parts by weight of a peroxy ketal, and (ii) 0.01 to 5 parts by weight of a peroxy ketal plus 0.1 to 10 parts by weight of a tertiary amine.
Claim 3
Dependent Claim
24 words
Visible light-curing polyester resin composition according to claim 1, wherein said α-diketone is one member selected from the group consisting of benzil and camphorquinone
Claim 4
Dependent Claim
31 words
A visible light-curing polyester resin composition according to claim 5, wherein said peroxy ketal is at least one member selected from the group consisting of 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, 1,1-bis(t-butylperoxy)cyclohexane, n-butyl-4,4'-bis(t-butylperoxy)-valerate, 1,1-bis(t-butylperoxy)cyclododecane, and 3,3,6,6,9,9-hexamethyl-1,2,4,5-tetraoxocyclononane.
Claim 5
Dependent Claim
29 words
A visible light-curing polyester resin composition according to claim 5, wherein said tertiary amine is at least one member selected from the group consisting of N-ethyl morpholine and trialkylamines.
Claim 6
Dependent Claim
93 words
A visible light-curing polyester resin composition, consisting essentially of; 100 parts by weight of an unsaturated polyester resin prepared by polymerizing an ethylically unsaturated dibasic acid or anhydride and a glycol, and a polymerizable vinyl monomer and a photocuring agent consisting of: (a) 0.1 to 5 parts by weight of an α-diketone, (b) 0.1 to 5 parts by weight of a benzildimethyl ketal, and (c) a member selected from the group consisting of: (i) 0.01 to 5 parts by weight of 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, and (ii) 0.1 to 10 parts by weight of N-ethyl morpholine.
Claim 7
Dependent Claim
93 words
A visible light-curing polyester resin composition, consisting essentially of; 100 parts by weight of an unsaturated polyester resin prepared by polymerizing an ethylically unsaturated dibasic acid or anhydride and a glycol, and a polymerizable vinyl monomer and a photocuring agent consisting of: (a) 0.1 to 5 parts by weight of an α-diketone, (b) 0.1 to 5 parts by weight of a benzildimethyl ketal, and (c) a member selected from the group consisting of: (i) 0.01 to 5 parts by weight of 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, and (ii) 0.1 to 10 parts by weight of N-ethyl morpholine.
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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) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |