US3882006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for curing alkyd resin compositions by applying ionizing radiation
Assignee: Kansai Paint Co Ltd
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Filing: 1973-11-05
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Granted: 1975-05-06
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Expires: 1993-11-05
Abstract
Abstract An alkyd resin composition is prepared by dissolving a polymerizable alkyd resin having from 10 to 50% of oil length into a vinyl monomer. The polymerizable alkyd resin is obtained by a half-esterification reaction of an acid anhydride having a polymerizable unsaturated group and an alkyd resin modified with conjugated unsaturated fatty acid and/or conjugated unsaturated oil having at least one reactive hydroxyl group per one molecule. The alkyd resin composition thus obtained is coated on an article, and ionizing radiation is applied on the article to cure the coated film thereon.
Inventors
- 👤 Tadashi Watanabe
- 👤 Koichiro Murata
- 👤 Tsutomu Maruyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08F; C08F283/00; C08F283/01; Y; Y10; Y10S; Y10S522/00; Y10S522/911; Y10S522/912
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
A METHOD FOR CURING ALKYD RESIN COMPOSITIONS WHICH COMPRISES APPLYING IONIZING RADIATION IN A TOTAL RADIATION DOSE OF FROM 0.1 TO 50 M RAD TO AN ALKYD RESIN COMPOSITION COMPRISING A. STYRENE; AND B. AN ALKYD RESIN PRODUCT CONSISTING ESSENTIALLY OF THE HALFESTERIFICATION PRODUCT OF (1) A CONJUGATED UNSATURATED FATTY ACID OR CONJUGATED UNSATURATED FATTY OIL, SELECTED FROM THE GROUP CONSISTING OF TUNG OIL, LINSEED OIL, LINOLIC AND DEHYDRATED CASTOR OIL, MODIFIED ALKYD RESIN, SAID ALKYD RESIN OF INGREDIENTS COMPRISING PHTHALIC ANHYDRIDE, PENTAERYTHRIOTOL, AND TRIMETHYLOL ETHANE OR GLYCERINE HAVING AN OIL LENGTH OF FROM 10 TO 50 PERCENT AND A HYDROXYL EQUIVALENT OF 300-2OOO, AND (2) MALEIC ANHYDRIDE OR CITRACONIC ANHYDRIDE, SAID ANHYDRIDE BEING IN AN AMOUNT SUFFICIENT TO REACT WITH AT LEAST 30 PERCENT OF THE HYDROXYL GROUPS OF SAID MODIFIED ALKYD RESIN.
Claim 2
Independent Claim
134 words
A METHOD FOR CURING ALKYD RESIN COMPOSITIONS WHICH COMPRISES APPLYING IONIZING RADIATION IN A TOTAL RADIATION DOSE OF FROM 0.1 TO 50 M RAD TO AN ALKYD RESIN COMPOSITION COMPRISING A. STYRENE; AND B. AN ALKYD RESIN PRODUCT CONSISTING ESSENTIALLY OF THE HALFESTERIFICATION PRODUCT OF (1) A CONJUGATED UNSATURATED FATTY ACID OR CONJUGATED UNSATURATED FATTY OIL, SELECTED FROM THE GROUP CONSISTING OF TUNG OIL, LINSEED OIL, LINOLIC AND DEHYDRATED CASTOR OIL, MODIFIED ALKYD RESIN, SAID ALKYD RESIN OF INGREDIENTS COMPRISING PHTHALIC ANHYDRIDE, PENTAERYTHRIOTOL, AND TRIMETHYLOL ETHANE OR GLYCERINE HAVING AN OIL LENGTH OF FROM 10 TO 50 PERCENT AND A HYDROXYL EQUIVALENT OF 300-2OOO, AND (2) MALEIC ANHYDRIDE OR CITRACONIC ANHYDRIDE, SAID ANHYDRIDE BEING IN AN AMOUNT SUFFICIENT TO REACT WITH AT LEAST 30 PERCENT OF THE HYDROXYL GROUPS OF SAID MODIFIED ALKYD RESIN.
Claim 3
Dependent Claim
38 words
A method for curing alkyd resin compositions according to claim 1, in which said ionizing radiation is carried out by a member selected from the group consisting of proton rays, alpha-rays, beta-rays, gamma-rays, accelerated electron rays, and X-rays.
Claim 4
Dependent Claim
30 words
A method for curing alkyd resin compositions according to claim 1, in which said ionizing radiation is applied in a total radiation dose of from 0.5 to 10.0 M rad.
Claim 5
Dependent Claim
31 words
The method of claim 1 wherein the alkyd resin is of ingredients consisting of phthalic anhydride, pentaerythritol, trimethylol ethane, and tung oil fatty acid, and the acid anhydride is maleic anhydride.
Claim 6
Dependent Claim
32 words
The method of claim 1 wherein the alkyd resin is of ingredients consisting of phthalic anhydride, pentaerythritol, trimethylol ethane, and isomerized linseed oil fatty acid, and the acid anhydride is citraconic anhydride.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein the alkyd resin is of ingredients consisting of dehydrated castor oil, pentaerythritol, glycerine and phthalic anhydride, and the acid anhydride is maleic anhydride.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein said ionizing radiation is applied at a temperature of 5*-50* C.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |