US4332657A
Expired / Lapsed
US
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Emulsion composition for use in baking paint
Assignee: Kansai Paint Co Ltd
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Filing: 1979-11-16
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Granted: 1982-06-01
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Expires: 1999-11-16
Abstract
Abstract An emulsion composition for use in baking paint prepared by emulsion polymerization with ionizing radiation of a monomer mixture comprising (1) at least one acrylamide selected from the group consisting of N-methylolacrylamide and N-alkoxymethylacrylamide, (2) a radical polymerizable ethylenic unsaturated monomer having a hydroxyl group, and (3) a radical polymerizable ethylenic unsaturated monomer other than (1) and (2) above.
Inventors
- 👤 Keizo Makuuchi
- 👤 Akio Katakai
- 👤 Miyuki Hagiwara
- 👤 Tsutomu Yamamoto
- 👤 Hiroyuki Nakayama
- 👤 Tohru Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/24; C09D133/26; C08; C08F; C08F2/00; C08F2/46; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D133/04; C09D133/06; C09D133/062; C09D133/066; Y; Y10; Y10S; Y10S522/00; Y10S522/911; Y10S522/912; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
An aqueous polymer emulsion for use in a baking paint prepared by a process consisting essentially of dispersing a monomer mixture of (A) 2 to 40% by weight of at least one acrylamide selected from the group consisting of N-methylolacrylamide and N-alkoxymethylacrylamide; (B) 1 to 25% by weight of one or more radical polymerizable ethylenic unsaturated monomers having a hydroxyl group having the formula ##STR2## wherein R 1 is H or CH 3 , R 2 is H or CH 3 , and n is from 1 to 15; or CH 2 ═CH--CH 2 --OH; and (C) 35 to 97% by weight of one or more radical polymerizable ethylenic unsaturated monomers selected from the group consisting of styrene, styrene derivatives, (meth)acrylic acid, (meth)acrylates, acrylonitrile, methacrylonitrile, butadiene, vinyl esters, 1,6-hexanediol di(meth)acrylate and divinyl benzene, the percentages of (A)+(B)+(C) being 100, in water in the presence of surfactant to form an emulsion and irradiating the emulsion with ionizing radiation.
Claim 2
Dependent Claim
157 words
An aqueous polymer emulsion for use in a baking paint prepared by a process consisting essentially of dispersing a monomer mixture of (A) 2 to 40% by weight of at least one acrylamide selected from the group consisting of N-methylolacrylamide and N-alkoxymethylacrylamide; (B) 1 to 25% by weight of one or more radical polymerizable ethylenic unsaturated monomers having a hydroxyl group having the formula ##STR2## wherein R 1 is H or CH 3 , R 2 is H or CH 3 , and n is from 1 to 15; or CH 2 ═CH--CH 2 --OH; and (C) 35 to 97% by weight of one or more radical polymerizable ethylenic unsaturated monomers selected from the group consisting of styrene, styrene derivatives, (meth)acrylic acid, (meth)acrylates, acrylonitrile, methacrylonitrile, butadiene, vinyl esters, 1,6-hexanediol di(meth)acrylate and divinyl benzene, the percentages of (A)+(B)+(C) being 100, in water in the presence of surfactant to form an emulsion and irradiating the emulsion with ionizing radiation.
Claim 3
Dependent Claim
24 words
The aqueous polymer emulsion as defined in claim 1, wherein the emulsion polymerization is carried out at a temperature from -5° to 50° C.
Claim 4
Dependent Claim
19 words
The aqueous polymer emulsion of claim 1 wherein the total dose of radiation is 0.01 Mrad to 1.0 Mrad.
Claim 5
Dependent Claim
20 words
The aqueous polymer emulsion of claim 1 wherein monomer (A) is present in an amount of at least 20 wt/%.
Claim 6
Dependent Claim
30 words
The aqueous polymer emulsion of claim 1 wherein monomer (A) is selected from the group consisting of N-methoxymethylacrylamide, N-ethoxymethylacrylamide, N-propoxy-methylacrylamide, N-isopropoxymethylacrylamide, N-n-butoxymethylacrylamide, N-sec-butoxymethylacrylamide, N-tert-butoxymethylacrylamide, N-isobutoxymethylacrylamide, N-n-pentoxymethylacrylamide, N-2-methylbutoxymethylacrylamide, N-2-ethylpropoxymethylacrylamide and N-2,2-dimethylpropoxymethylacrylamide.
Claim 7
Dependent Claim
19 words
The aqueous polymer emulsion of claim 1 wherein monomer (C) has at least two radical polymerizable ethylenic unsaturated groups.
References Cited (Backward Citations)
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US3551525A
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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) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |