Title:
エチレンコポリマーで可塑化したPVCの改良製造方法
Document Type and Number:
Japanese Patent JP3651900
Kind Code:
B2
Abstract:
Gel, or unfluxed PVC grains commonly present in PVC plasticized with high molecular weight ethylene copolymer plasticizers, can be reduced by using an improved production process which involves substituting a modifier, which is partially crosslinked high molecular weight ethylene copolymer, for a portion of the non-crosslinked high molecular weight ethylene copolymer plasticizer. Preferably the modifier also contains a small mount of a low molecular weight plasticizer to counteract the effect of viscosity increase which the partially crosslinked ethylene copolymer otherwise would produce.
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Inventors:
Hoffman, Giorgio Henry
Application Number:
JP51468496A
Publication Date:
May 25, 2005
Filing Date:
October 24, 1995
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
C08J3/18; C08L23/04; C08L27/06; C08L31/04; C08L33/08; C08L73/00; C08L23/08; (IPC1-7): C08L27/06; C08J3/18; C08L23/04; C08L31/04; C08L33/08; C08L73/00
Domestic Patent References:
| JP6508167A | ||||
| JP59030843A | ||||
| JP3086746A |
Other References:
G.H.HOFMANN.R.J.STATZ, and R.B.CASE, Plasticization of PVC With Ethylene Copolymer Resins, JOURNAL OF VINYL TECHNOLOGY, 1994年 3月,Vol.16,No.1,p.16-20
Attorney, Agent or Firm:
Heikichi Odashima
Fukaura Hideo
Fukaura Hideo