Process for manufacture of plasticized homopolymeric polyvinyl alcohol and plasticized polyvinyl alcohol polymer obtained therefrom

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12252607
APP PUB NO 20230348638A1
SERIAL NO

18014793

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention describes a method for the manufacture of a plasticized polyvinyl alcohol polymer mixture including the steps of: introducing into a mixing reactor a polyvinyl alcohol polymer comprising homopolymeric polyvinyl alcohol or a blend thereof having a degree of hydrolysis in the range of 93% to less than 98% or more; where the plasticizer comprises two or more compounds selected from the group consisting of diglycerol, triglycerol, xylose, D-mannitol, triacetin, dipentaerythritol, 1,4-butanediol, 3,3-dimethyl-1,2-butanediol, and caprolactam; reacting the water, the plasticizer and the polyvinyl alcohol polymer in the reaction zone to form the plasticized polymer; and allowing the plasticized polyvinyl alcohol polymer to pass from the primary outlet.

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Patent Owner(s)

  • AQUAPAK IP LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashworth, Robert Conwy, GB 13 118
Griffiths, Sian Conwy, GB 14 17
Williams, John Chirbury, GB 198 1333

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