D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
117/199
D06M 15/263 (2006.01)
Patent
CA 1177342
-i - PATENT APPLICATION OF Hal C. Morris for A METHOD OF SIZING HYDROPHOBIC YARN HLG:rmg DN. 80-02B 10/5/81 ABSTRACT A method of sizing a hydrophobic yarn of weaving comprising the steps of applying thereto an acid pH latex of a free radical initiated vinyl polymer and drying the yarn. The polymer has a weight average molecular weight of from about 300,000 to about 2,500,000, and in dried film form is hydrophobic, not redispersible in a solution at a low pH and redispersible in an alkaline aqueous medium. The polymer is prepared from monomers comprising about 8% to about 14%, by weight ethylenically unsaturated acid. The average solubility parameter of the monomers in the polymer is between about 9.0 and about 9.5; the calculated polymer Tg is between about -20°C and -20°C. Preferred yarns are nylon and polyester.
392624
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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