Title:
【発明の名称】マニホールドの中に染料を吐出するためのバルブ構造体
Document Type and Number:
Japanese Patent JP2003502182
Kind Code:
A
Abstract:
This invention relates to an improved procedure and apparatus for making colored polyurethane foam products, such as carpet underlay and the like, as well as the improved colored product itself. Such a procedure entails the utilization of at least one valve assembly within a color dosing manifold such that the valve itself is simultaneously in contact with both the outside surface and the inside surface of the manifold. Such a disposition for a valve assembly permits color to be introduced directly into a binder (i.e., polyol and isocyanate) or polyol stream in order to substantially eliminate any color remaining in contact solely with the inside walls of the manifold. This in turn permits thorough mixing of the binder and colorant and substantially reduces the response time from opening the valve to producing colored polyurethane materials (such as polyurethane foam), thereby effectively eliminating the production of waste polyurethane product. The inventive configuration comprising a specific type of ball valve and/or the placement of a plurality of such disposed valves in a radial configuration on the manifold are also contemplated within the invention.
Inventors:
Cochano Wicks, Christopher Tea
Shabis, Jimmy Dee
Ragsdale, Mark Yee
Shabis, Jimmy Dee
Ragsdale, Mark Yee
Application Number:
JP2001504494A
Publication Date:
January 21, 2003
Filing Date:
June 15, 2000
Export Citation:
Assignee:
Milliken & Company
International Classes:
B29C31/10; B01F3/08; B01F5/00; B01F5/04; B01F15/02; B29B7/60; B29C39/24; D06P3/24; D06P5/08; F16K11/087; B29K75/00; (IPC1-7): B29C31/10; B01F3/08; B01F5/00; B29C39/24
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)
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