Water-dilutable binders for cationic electrocoating finishes and a process for the preparation thereof
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-059/50
C08L-063/02
C09D-005/44
출원번호
US-0009956
(1987-01-23)
우선권정보
DE-3518770 (1985-05-24)
국제출원번호
PCT/EP86/00303
§371/§102 date
19870123
(19870123)
국제공개번호
WO-8607083
(1986-12-04)
발명자
/ 주소
Dobbelstein Arnold (Mnster DEX) Geist Michael (Mnster DEX) Ott Gnther (Mnster DEX) Schn Georg (Everswinkel DEX)
출원인 / 주소
BASF Lacke +Farben AG (Mnster-Hiltrup DEX 03)
인용정보
피인용 횟수 :
8인용 특허 :
6
초록▼
The invention relates to a water-dilutable binder for cationic electrocoating finishes. For the preparation of the binders (A) a di-epoxide compound with an epoxide equivalent weight below 2,000 is reacted with (B) a phenol- or thiol-containing compound which reacts monofunctionally with epoxide gro
The invention relates to a water-dilutable binder for cationic electrocoating finishes. For the preparation of the binders (A) a di-epoxide compound with an epoxide equivalent weight below 2,000 is reacted with (B) a phenol- or thiol-containing compound which reacts monofunctionally with epoxide groups, and with (C) primary and/or secondary amines or their salts and/or the salt of a tertiary amine, a sulfide/acid mixture or phosphine/acid mixture or a mixture of these compounds, as well as, if desired, with (D) a polyfunctional alcohol, a polycarboxylic acid, a polysulfide or a polyphenol. The components A and B are used in a molar ratio of from 10:1 to 1:1, preferably from 4:1 to 1.5:1 and the reaction of the component A with the component B is carried out at 100°to 190°C., if desired in the presence of a catalyst.
대표청구항▼
A water-dilutable binder for cationic electrocoating finishes based on modified epoxy resins containing ammonium, sulfonium and/or phosphonium groups, wherein the binders are obtainable by reacting (A) a di-epoxide compound, or a mixture of di-epoxide compounds, having an epoxide equivalent weight b
A water-dilutable binder for cationic electrocoating finishes based on modified epoxy resins containing ammonium, sulfonium and/or phosphonium groups, wherein the binders are obtainable by reacting (A) a di-epoxide compound, or a mixture of di-epoxide compounds, having an epoxide equivalent weight below 2,000, with (B) a phenol or thiol group-containing compound which, under the given reaction conditions, reacts monofunctionally with epoxide groups, or a mixture of such compounds, and with (C) primary and/or secondary amines or their salts and/or the salt of a tertiary amine, a sulfide/acid mixture or phosphine/acid mixture or a mixture of these compounds, as well as, if desired, with (D) a polyfunctional alcohol, a polycarboxylic acid, a polyamine, a polysulfide, a polyphenol or a mixture of these compounds, the components A and B being used in a molar ratio from 10:1 to 1:1, preferably from 4:1 to 1.5:1, the reaction of component A with component B being carried out at 100°to 190°C., if desired in the presence of a catalyst, and, if further desired, the dilutability with water being obtained by protonization with a water-soluble acid.
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이 특허에 인용된 특허 (6)
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