Compositions for carpet backings
AssigneeTakeda Chemical Industries, Ltd.
InventorsMasahiro Miwa, Yoshio Kamatani
Life of this patent
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Abstract
A composition for carpet backings which comprises: (a) an aqueous dispersion of a high molecular weight polymer; and (b) a blocked polyisocyanate in amounts of about 0.5-30 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion. The composition preferably further contains a melamine resin in amounts of about 0.1-10 parts by weight, and/or a vulcanizing agent in amounts of about 0.5-10 parts by weight, each in relation to 100 parts by weight of the solids of the aqueous dispersion. The carpet having backings formed with the composition is excellent in washability so that there takes place little shrinkage and curling after repeated washing.
Claims8
A walk on-walk off type carpet or mat comprising a carpet substrate and a backing, said backing being of excellent washability and being produced by applying to the back of the carpet substrate a composition which comprises:
- (a) an aqueous dispersion selected from the group consisting of a styrene-butadiene rubber (SBR), acrylonitrile-butadiene rubber (NBR), methyl methacrylatebutadiene rubber (MBR) and an acrylic latex;
- (b) a blocked polyisocyanate in amounts of about 0.5-30 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion;
- and
- (c) a vulcanizing agent in amounts of about 0.5-10 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion.
A walk on-walk off type carpet or mat comprising a carpet substrate and a backing, said backing being of excellent washability and being produced by applying to the back of the carpet substrate a composition which comprises:
- (a) an aqueous dispersion selected from the group consisting of styrene-butadiene rubber (SBR), acrylonitrilebutadiene rubber (NBR), methyl methacrylate-butadiene rubber (MBR) and an acrylic latex;
- (b) a blocked polyisocyanate in amounts of about 0.5-30 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion;
- and
- (c) a melamine resin in amounts of about 0.1-10 parts by weight in relation to 100 parts by weight of the solids of the aqueous dispersion.
Dependencies are inferred from the claim text.