Title:
ポリウレタンフォーム成形品の製造方法
Document Type and Number:
Japanese Patent JP4315156
Kind Code:
B2
Abstract:
At least two urethane stock solutions capable of forming polyurethane foam segments having different physical characteristics are charged into a mold and foamed under a predetermined molding pressure P to mold a one-piece polyurethane product including at least two molded portions having different physical characteristics. During the foaming step, the amounts of urethane stock solutions charged are determined so that the predetermined molding pressure P is obtained at any molded portion.
Inventors:
Mountain Saki Koichiro
Application Number:
JP2005509740A
Publication Date:
August 19, 2009
Filing Date:
December 15, 2003
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B29C39/12; B29C39/42; B29C39/44; B29C44/04; B29K75/00; B29K105/04; B29L31/58
Domestic Patent References:
| JP2002300936A | ||||
| JP3186060B2 | ||||
| JP57001740A | ||||
| JP2002153357A | ||||
| JP6075884B2 | ||||
| JP2002065409A | ||||
| JP10094686A | ||||
| JP8098966A |
Attorney, Agent or Firm:
Tsuyoshi Shigeno