EP0199171A2
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EP
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A method for manufacturing casein-based, coat forming polymers of increased elasticity
Assignee: "POLIFARB" PILAWSKIE ZAKLADY FARB I LAKIEROW
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Filing: 1986-04-07
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Granted: —
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Expires: 2006-04-07
Abstract
Abstract A method of obtaining casein-based, coat-forming polymers of increased elasticity involves reacting casein with compounds having an epoxy grouping, and particularly with glycydol at a rate of 0.1-300% by weight in relation to casein over a temperature range of 20-120°C. In addition to glycydol use is made in the reaction of other epoxy compounds, and particularly epichlorhydrin or glycydol ethers. The reaction can also be carried out using other epoxy compound instead of glycydol. In case the reaction is carried out in an aqueous solution, it is preferred to add dicyandiamide or urea at a rate of 30% in relation to casein.
Inventors
- 👤 Zbigniew Brzozowski
- 👤 Krzysztof Lorens
- 👤 Bogdan Pietrzak
- 👤 Elzbieta Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 05:25
CPC Classifications
C; C09; C09D; C09D189/00; C09D189/005; C08; C08H; C08H1/00; C08H1/02; C08H1/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
50 words
A method of obtaining casein-based, coat-forming polymers of increa.sed elasticity, characterised in that casein is acted upon by compounds having an epoxy grouping, and particularly glycydol at a rate of 0.1-300 % by weight in relation to casein, preferably in an aqueous solution over a tempera- ttre range of 20-120°C.
Claim 2
Independent Claim
50 words
A method of obtaining casein-based, coat-forming polymers of increa.sed elasticity, characterised in that casein is acted upon by compounds having an epoxy grouping, and particularly glycydol at a rate of 0.1-300 % by weight in relation to casein, preferably in an aqueous solution over a tempera- ttre range of 20-120°C.
Claim 3
Dependent Claim
35 words
A method as per Claim 1, characterised. in that, in addition to glycydol, other epoxy compounds are used in the reaction, and particularly epichlorhydrin at a rate of 0.1-10% by weight in relation to glycydol.
Claim 4
Dependent Claim
31 words
A method as per Claim 1, characterised in that, in addition to glycydol, glycydyl ethers are used in the reaction at a rate of 0.1-100% by weight in relation to glycydol.
Claim 5
Dependent Claim
16 words
A method as per Claim 3, characterised in that butyl-glycydyl ether is used as glycydyl ethers.
Claim 6
Dependent Claim
16 words
A method as per Claim 3, characterised in that phenyl-glycydyl ether is used as glycydyl ethers.
Claim 7
Dependent Claim
32 words
A method as per Claim 1, characterised in that dicyandiamide is added at a rate of 30% in relation to casein to the aqueous solution before casein reacts with the epoxy compound.
Claim 8
Dependent Claim
32 words
A method as per Claim 1, characterised in that urea is added at a rate of 30% in relation to casein to the aqueous solution before casein reacts with the epoxy compound.
Claim 9
Independent Claim
58 words
A method of obtaining casein-based, coat-forming polymers of increased elasticity, characterised in that casein is acted upon by compounds having an epoxy grouping, and particularly epichlorhydrin and for ethylene oxide and/or propylene oxide and/or glycydyl ether at a rate of 0.1-200% by weight in relation to casein, preferably in an aqueous solution over a temperature range of 20-120°C.
Claim 10
Independent Claim
58 words
A method of obtaining casein-based, coat-forming polymers of increased elasticity, characterised in that casein is acted upon by compounds having an epoxy grouping, and particularly epichlorhydrin and for ethylene oxide and/or propylene oxide and/or glycydyl ether at a rate of 0.1-200% by weight in relation to casein, preferably in an aqueous solution over a temperature range of 20-120°C.
Claim 11
Dependent Claim
35 words
A method as per Claim 8, characterised in that dicyandiamide is added at a rate of up to 30% in relation to casein to the aqueous solution before casein reacts with the epoxy compound. -
Claim 12
Dependent Claim
32 words
A method as per Claim 8, characterised in that urea is added at a rate of 30% in relation to casein to the aqueous solution before casein reacts with the epoxy compound.
References Cited (Backward Citations)
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