Patent US3413503A successfully refreshed from Google Patents.
US4130601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin composition for powder paint
Assignee: DIC Corp
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Filing: 1978-02-21
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Granted: 1978-12-19
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Expires: 1998-02-21
Abstract
Abstract A resin composition for powder paints, said composition comprising (I) 70 to 97% by weight of a polyester resin containing free carboxyl groups in the molecule and having an acid value of 20 to 100 KOH mg/g and a softening point of 70 DEG to 150 DEG C and (II) 3 to 30% by weight of glycidyl p-glycidyloxybenzoate.
Inventors
- 👤 Masataka Ohoka
- 👤 Mitsuko Yamada
- 👤 Akio Shoji
- 👤 Shunji Arimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4246; C08G59/4269; C08G59/4276; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A resin composition for powder paints, said composition comprising (I) 70 to 97% by weight of a polyester resin containing free carboxyl groups in the molecule and having an acid value of 20 to 100 KOH mg/g and a softening point of 70° to 150° C. and (II) 3 to 30% by weight of glycidyl p-glycidyloxybenzoate.
Claim 2
Dependent Claim
56 words
A resin composition for powder paints, said composition comprising (I) 70 to 97% by weight of a polyester resin containing free carboxyl groups in the molecule and having an acid value of 20 to 100 KOH mg/g and a softening point of 70° to 150° C. and (II) 3 to 30% by weight of glycidyl p-glycidyloxybenzoate.
Claim 3
Dependent Claim
26 words
The composition of claim 1 wherein at least 70% of the entire carboxylic acid component of the polyester resin (I) consists of an aromatic dicarboxylic acid.
Claim 4
Dependent Claim
45 words
The composition of claim 1 wherein at least 40 mole% of the entire alcohol component of the polyester resin (I) consists of an aliphatic diol with 4 to 6 carbon atoms, and 3 to 30 mole% of it consists of a cyclohexane ring-containing polyhydric alcohol.
Claim 5
Dependent Claim
28 words
The composition of claim 1 wherein the glycidyl p-glycidyloxybenzoate (II) is expressed by the general formula ##STR2## wherein n is 0 or an integer of 1 to 10.
Claim 6
Dependent Claim
25 words
The composition of claim 3 wherein at least 70% of the entire carboxylic acid component of the polyester (I) consists of an aromatic dicarboxylic acid.
Claim 7
Dependent Claim
24 words
The composition of claim 1 which comprises 80-95% by weight of said polyester resin (I) and 5-25% by weight of said glycidyl p-glycidyloxybenzoate (II).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |