Title:
【発明の名称】板状ポリマー体とその製造方法
Document Type and Number:
Japanese Patent JPH06506408
Kind Code:
A
Abstract:
A method for the production of a lamellar reflective polymeric body is provided and includes the steps of providing a first stream of a first heat plastified polymeric material and a second stream of a second heat plastified polymeric material, and encapsulating discrete portions of the first polymeric material in the second polymeric material by coextruding the polymeric materials to form a plurality of ribbon-like layers of the first polymeric material within a matrix of the second polymeric material to form the reflective polymeric body. The layers of the first polymeric material are arranged to have their major interfaces aligned substantially parallel to the major surfaces of the body such that at least 30% of light incident on the body is reflected. The ribbon-like layers may be further divided into a series of platelet-like layers to produce layers which are discontinuous in all major planar dimensions by passing the ribbon-like layers through a reciprocating feed plate or valve.
Inventors:
Schlenk, Walter Jay
Application Number:
JP50436992A
Publication Date:
July 21, 1994
Filing Date:
December 18, 1991
Export Citation:
Assignee:
Minnesota Mining and Manufacturing Company
International Classes:
B32B3/18; B29C70/58; B29D11/00; B32B3/22; B32B7/02; B32B27/00; B32B27/08; G02B5/28; G02B5/30; B29C48/08; B32B; (IPC1-7): B32B7/02; B32B3/18; B32B27/00; B32B27/08
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)