Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-08-05
1997-08-26
Clark, W. Robinson H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 56, 524803, C08L 2904
Patent
active
056612176
ABSTRACT:
A method of forming a useful molded part or film of polyvinyl alcohol. The polyvinyl alcohol, together with a plasticizer is injection or blow molded to form the useful molded part or melt processed (blown or cast extrusion) to form the film wherein upon forming the useful molded part or film, the plasticizer is substantially removed to create the useful molded part or film which is selectively hot water soluble and which is resistant to the affects of moisture below the solubility temperature.
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Encyclopedia of Polymer Science & Engineering; John Wiley & Sons; pp. 167-168, 170-172 & 186-187; 1989.
Honeycutt Travis W.
Khamvongsa Bryan
Lee Baosheng
Clark W. Robinson H.
Isolyser Company, Inc.
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