Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-01-11
2011-01-11
Moore, Margaret G (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S201000, C525S100000, C525S106000, C525S479000, C525S902000
Reexamination Certificate
active
07868063
ABSTRACT:
Disclosed is a powdered polymeric lubricant having a multi-layer structure as a processing aid capable of being used to improve processability of a vinyl chloride resin, and a manufacturing method thereof. The powdered polymeric lubricant having multi-layer structure according to the present invention has an excellent ability to prevent its adhesion to a metal surface upon its processing so as to give a long-term workability to extrusion, calendaring, blow molding, injection molding, etc., when a small amount of the powder of the present invention is mixed with a vinyl chloride resin. Accordingly, the present invention provides a powdered polymeric lubricant capable of controlling compatibility with the vinyl chloride resin and minimizing the adhesive property to a metal surface of a processing machine when a vinyl chloride resin is processed with a polymer including a silicone-based polymer.
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Translation of JP 05339462A.
Translation of JP 2003160624 A.
Sauners, K.J., Organic Polymer Chemistry, 2nded. Chapman and Hall, Ltd.: London, England. 1988. p. 409.
Ahn Jeong-heon
Han Jung-sup
Lee Yong-Hun
Son Hyung-jun
Baumstein Kyle
Cantor & Colburn LLP
LG Chem Ltd.
Moore Margaret G
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