[특허]Water-borne coating composition made from epoxy resin, first polymeric acid, tertiary amine and second polymeric acid

[미국특허] Water-borne coating composition made from epoxy resin, first polymeric acid, tertiary amine and second polymeric acid 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08K-003/20 C08L-063/00
출원번호	US-0369077 (1982-04-16)
발명자 / 주소	Harper Lee R. (Media PA) Obetz Judith E. (Bryn Mawr PA) Steinmetz William H. (Collingswood NJ)
출원인 / 주소	E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보	피인용 횟수 : 30 인용 특허 : 1

초록 ▼

Water-borne reaction products of (a) carboxyl-functional polymers; (b) polyepoxides; and (c) tertiary amines are blended with (d) carboxyl-functional polymers having an acid number dissimilar to that of (a). The resulting products are useful as film-forming components of coating compositions which can be spray-, flow-, dip-, roller-, or electro-coated and are especially useful for spray coating the inside of two-piece tin-plated steel cans of beverages and food. The coating compositions are useful as such or can be crosslinked with crosslinking agents such as a nitrogen resin.

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A water-borne coating composition consisting essentially of liquid carrier and a second reaction product made by blending a second carboxyl-functional polymer with a first reaction product, wherein said first reaction product is the product of the reaction in an organic media of: (A) 50-90% by weight, based on the weight of (A) plus (B), of an epoxy resin containing, on the average, about 1½to 2 terminal 1,2-epoxy groups per molecule and having an epoxy equivalent weight of 750-5000; (B) a first carboxyl-functional polymer in an amount sufficient to provide at least 1.25 equivalents of carboxyl groups, when the source of the carboxyl group is a mono-protic acid, and at least 2.0 equivalents of carboxyl groups, when the source of such groups is a diprotic acid, per equivalent of 1,2-epoxy groups in the epoxy resin, said polymer having a weight average molecular weight (determined by light scattering) of about 10000-160000 and an acid number of 100-500; (C) at least 1.25 equivalents of a tertiary amine per equivalent of 1,2-epoxy groups in the epoxy resin, said tertiary amine being selected from the group consisting of R1R2R3N, pyridine, N-methylpyrrole, N-methyl piperidine, N-methyl pyrrolidine, N-methyl morpholine, and mixtures thereof and wherein R1 and R2 are substituted or unsubstituted monovalent alkyl groups containing one or two carbon atoms in the alkyl portion and R3 is a substituted or unsubstituted monovalent alkyl group containing 1-4 carbon atoms; (D) optionally, 10-90% of the amount required for stoichiometric reaction with the carboxyl-functional polymer of (B) of at least one primary, secondary or tertiary amine or monofunctional quaternary ammonium hydroxide; wherein for increasing ratios of carboxyl groups to 1,2-epoxy groups, the amount of amine is increased to keep the carboxyl-functional polymer water dispersible; (E) said second carboxyl-functional polymer being blended in an amount of 5 to 200 parts by weight per 100 parts by weight of (A) plus (B) and having a weight average molecular weight (determined by light scattering) of about 10,000-160,000 and an acid number of 50-500, said acid number being at least 50 units different than the acid number of said first carboxyl-functional polymer, said second reaction product containing not less than 30% by weight of epoxy resin (A) based on the total of (A), (B) and (E).

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Matthews James F. (Levittown PA) Sommerfeld Eugene G. (Penn Valley PA), Water-borne coating composition made from epoxy resin, polymeric acid and tertiary amine.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Water-borne coating composition made from epoxy resin, first polymeric acid, tertiary amine and second polymeric acid 원문보기

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[미국특허] Water-borne coating composition made from epoxy resin, first polymeric acid, tertiary amine and second polymeric acid 원문보기

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