C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 17/04 (2006.01) C11D 3/02 (2006.01) C11D 3/06 (2006.01) C11D 3/08 (2006.01) C11D 3/10 (2006.01) C11D 3/395 (2006.01) C11D 17/00 (2006.01)
Patent
CA 2269493
The invention concerns a pack containing a dry alkaline solid (1), which produces in an aqueous media a pH value exceeding 10, which consists of at least a one-layer packaging and which contains at least one polymer film (3) soluble in aqueous alkaline media. The polymer film contains two phases, whereby the continuous phase is made of a copolymer or terpolymer of a-(3 unsaturated monocarboxylic acid which has a COOH group and the discontinuous phase is formed by a polymer which has an epoxy group, whereby both polymers are bonded in the boundary layer through esterification between COOH groups of the copolymer or terpolymer and epoxy groups of the discontinuous phase polymer.
L'invention concerne un emballage-portion, lequel contient un solide alcalin sec (1) produisant dans un milieu aqueux une valeur de pH supérieure à 10 et se présente comme un emballage possédant au moins une couche comprenant au moins un film polymère (3), soluble dans un milieu aqueux alcalin. Le film polymère contient deux phases, une phase continue formée d'un copolymère ou d'un terpolymère d'un acide monocarboxylique alpha - beta insaturé possédant un groupe COOH, et une phase discontinue formée d'un polymère possédant un groupe époxy, les deux polymères étant liés dans la couche limite grâce à une estérification entre les groupes COOH du copolymère ou du terpolymère et les groupes époxy du polymère de la phase discontinue.
Deibig Heiner
Ruggieri Juan Carlos
Staal Jan
Van Den Brom Guido
Wielgolinski Lee
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Johnsondiversey Inc.
Plc Unilever
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