| 摘要 |
1419545 Bonding fabric layers SUMITOMO CHEMICAL CO Ltd 5 Feb 1973 [5 Feb 1972 28 April 1972] 5663/73 Heading B5N [Also in Divisions C3 and D1] Laminating adhesives for fabrics, e.g. interlining cloths, comprise copolymers of (1) 30 to 50 mole per cent of isobutylene and/or propylene units and (2) either 50 to 70 mole per cent of acrylic ester units or 20 to 70 mole per cent of acrylic ester units and up to 30 mole per cent of functional vinyl monomer units derived from unsaturated acids, acid halides, amides, anhydrides or nitriles or unsaturated aldehydes. In Example 8 polyester knitted fabric and nylon sheer crepe are spot-welded together by means of a roller printing process using toluene solutions of copolymers of acryloyl chloride with isobutylene and ethyl acrylate, isobutylene and ethylhexyl acrylate, and propylene and ethylhexyl acrylate, the bonded fabric being dried at 80‹ C. and cured at 130‹ C. |
