IT1069697B - Aq. coating compsn. - Google Patents

Aq. coating compsn.

Info

Publication number
IT1069697B
IT1069697B IT6908976A IT6908976A IT1069697B IT 1069697 B IT1069697 B IT 1069697B IT 6908976 A IT6908976 A IT 6908976A IT 6908976 A IT6908976 A IT 6908976A IT 1069697 B IT1069697 B IT 1069697B
Authority
IT
Italy
Prior art keywords
alkyl
chosen
copolymer
coating compsn
acrylamide
Prior art date
Application number
IT6908976A
Other languages
Italian (it)
Original Assignee
Ppg Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/608,370 external-priority patent/US4098745A/en
Application filed by Ppg Industries Inc filed Critical Ppg Industries Inc
Application granted granted Critical
Publication of IT1069697B publication Critical patent/IT1069697B/en

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Abstract

An aq. coating compsn. comprises a (partially) amine neutralised copolymer (I) prepd. in the presence of a catalyst and in the absence of external surfactants, mercaptans and dispersion stabiliser, and 5-40wt.% w.r.t. to total resin solid content aldehyde resin (II). (I) is a copolymer contg. 5-50wt.% substd. (meth)acrylamide (III) C-C(R)-(CONHCH2OR1) ; 3-30wt.% unsatd. carboxylic acid (IV) chosen from (meth)acrylic-, itaconic-, crotonic- or maleic acid or maleic- or fumaric acid semi-esters; 5-75wt.% monomer (V) chosen from styrene, vinyl toluene or 1-4C alkyl methacrylate; and 5-75wt.% plasticising monomer (VI) chosen from >13C alkyl acrylate and 5-16C alkyl methacrylate. R is H or Me and R1 is H or lower alkyl, at least 50% of R1 being lower alkyl. The coatings may be used as protective coatings for metal, glass, wood esp. for tin cans contg. food or drink. They have excellent adhesion to the metal and adhesive in the seam of the tin, good heat resistance and do not effect the clarity or taste of drinks e.g., beer. In an example, a coating compsn. comprised 200 pt.wt. aq. copolymer dispersion of acrylic acid, N-(butoxymethyl)-acrylamide, styrene, and the alkylacrylate, an alkyl methylolphenol ether 17.4 pt.wt. and ethylene glycol monoethylether 17.4 pt.wt.
IT6908976A 1975-08-27 1976-08-26 Aq. coating compsn. IT1069697B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/608,370 US4098745A (en) 1975-08-27 1975-08-27 Water-borne bondable base coat and size coat for three piece, tin-free steel beverage containers

Publications (1)

Publication Number Publication Date
IT1069697B true IT1069697B (en) 1985-03-25

Family

ID=24436184

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6908976A IT1069697B (en) 1975-08-27 1976-08-26 Aq. coating compsn.

Country Status (1)

Country Link
IT (1) IT1069697B (en)

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