US4863988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for curable paints
Assignee: Mitsui Chemicals Inc
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Filing: 1988-10-13
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Granted: 1989-09-05
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Expires: 2008-10-13
Abstract
Abstract A composition for curable paints, comprising (A) 100 parts by weight of a resin for curable paints, and (B) 0.5 to 10 parts by weight of chlorinated and graft-modified polypropylene which is produced by chlorinating polypropylene graft-modified with a grafting component selected from the group consisting of alpha,beta-unsaturated dicarboxylic acids, anhydrides thereof and esters thereof, and which has a chlorine content of 5 to 50% by weight, said graft-modified polypropylene having a degree of saponification of 5 to 150 mg/g and an intrinsic viscosity [ eta ] of 0.1 to 5 dl/g. A curable paint comprising the composition and a diluent.
Inventors
- 👤 Hajime Inagaki
- 👤 Tadao Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:42
CPC Classifications
C; C09; C09D; C09D175/00; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C09D163/00; C09D167/00; C09D201/00; C09D7/00; C09D7/40; C09D7/65; C08L; C08L23/00; C08L23/26; C08L23/28; C08L51/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A curable paint, comprising (A) 100 parts by weight or a resin for curable paints, and (B) 0.5 to 10 parts by weight of chlorinated and graft-modified polypropylene which is produced by chlorinating polypropylene graft-modified with a grafting component selected from the group consisting of maleic acid, maleic anhydride, citraconic acid, citraconic anhydride, fumaric acid and lower alkyl esters of said acids, and which has a chlorine content of 5 to 50% by weight, said graft-modified polypropylene before chlorination having a degree of saponification of 5 to 150 mg/g and an intrinsic viscosity, η, of 0.4 to 3 dl/g, and said polypropylene before grafting and chlorination containing 85 to 100 mole % of propylene component units.
Claim 2
Dependent Claim
116 words
A curable paint, comprising (A) 100 parts by weight or a resin for curable paints, and (B) 0.5 to 10 parts by weight of chlorinated and graft-modified polypropylene which is produced by chlorinating polypropylene graft-modified with a grafting component selected from the group consisting of maleic acid, maleic anhydride, citraconic acid, citraconic anhydride, fumaric acid and lower alkyl esters of said acids, and which has a chlorine content of 5 to 50% by weight, said graft-modified polypropylene before chlorination having a degree of saponification of 5 to 150 mg/g and an intrinsic viscosity, η, of 0.4 to 3 dl/g, and said polypropylene before grafting and chlorination containing 85 to 100 mole % of propylene component units.
Claim 3
Dependent Claim
29 words
The composition of claim 1, wherein the resin (A) is selected from alkyd resins, unsaturated polyesters, phenolic resins, epoxy resins, urea resins, malamine resins, polyurethane resins and acrylic resins.
Claim 4
Dependent Claim
22 words
The composition of claim 1 wherein the chlorinated and graft-modified polypropylene (B) has a chlorine content of 10 to 40% by weight.
Claim 5
Dependent Claim
21 words
The composition of claim 1 wherein the graft-modified polypropylene before chlorination has a degree of saponification of 7 to 100 mg/g.
Claim 6
Dependent Claim
22 words
The composition of claim 1 wherein the proportion of the chlorinated and graft-modified polypropylene (B) is 1 to 10 parts by weight.
Claim 7
Dependent Claim
119 words
A curable paint comprising (A) 100 parts of weight of a resin for curable paints, (B) 0.5 to 10 parts by weight of chlorinated and graft-modified polypropylene which is produced by chlorinating polypropylene graft-modified with a grafting component selected from the group consisting of maleic acid, maleic anhydride, citraconic acid, citraconic anhydride, fumaric acid and lower alkyl esters of said acids, and which has a chlorine content of 5 to 50% by weight, said graft-modified polypropylene before chlorination having a degree of saponification of 5 to 150 mg/g and an intrinsic viscosity, η, of 0.4 to 3 dl/g, and said propylene before grafting and chlorination containing 85 to 100 mole % of propylene component units, and (C) a diluent.
Claim 8
Dependent Claim
119 words
A curable paint comprising (A) 100 parts of weight of a resin for curable paints, (B) 0.5 to 10 parts by weight of chlorinated and graft-modified polypropylene which is produced by chlorinating polypropylene graft-modified with a grafting component selected from the group consisting of maleic acid, maleic anhydride, citraconic acid, citraconic anhydride, fumaric acid and lower alkyl esters of said acids, and which has a chlorine content of 5 to 50% by weight, said graft-modified polypropylene before chlorination having a degree of saponification of 5 to 150 mg/g and an intrinsic viscosity, η, of 0.4 to 3 dl/g, and said propylene before grafting and chlorination containing 85 to 100 mole % of propylene component units, and (C) a diluent.
Claim 9
Dependent Claim
31 words
The curable paint according to claim 6, wherein said diluent comprises a solvent selected from the group consisting of aromatic hydrocarbons, aliphatic hydrocarbons, halogenated hydrocarbons, alcohols, ketones, esters, and mixtures thereof.
Claim 10
Dependent Claim
12 words
The curable paint according to claim 6, wherein said diluent comprises water.
Claim 11
Dependent Claim
19 words
The curable paint according to claim 8, wherein said curable paint is in the form of an aqueous emulsion.
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) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |