Title: Craze-resistant transparent resinous copolymers
Application Number: 85100418 Application Date: 1985.04.01
Publication Number: 1003484 Publication Date: 1986.09.24
Approval Pub. Date: Granted Pub. Date: 1990.05.02
International Classifi-cation: C08F297/04,C08L53/02
Applicant(s) Name: Phillips Petroleum Corp. Address:
Inventor(s) Name:
Attorney & Agent: LIN BAINAN
Abstract:
     The present invention relates to resinous multimode block copolymers, produced by copolymerizing e.g.butadiene with styrene, which are craze-resistant(microcrack), transparent and substantially coloureless. The present invention also relates to a process of producing the block copolymers which are produced by a copolymerizing reaction in which the starting materials are added in an orderly way (continously), the charging for each component does not exceed three times, the sum of total charging times for all of three components is eight or nine.
Time: 8