公开(公告)号：ZA866386B

公开(公告)日：1987-04-29

申请号：ZA866386

申请日：1986-08-22

Applicant: STAMICARBON

Inventor： MOKVELD FLORIBERTUS CORNELIS H ,  SCHELLEKENS RONALD MICHAEL ALE

IPC: B29C55/00 ,  B29D7/00 ,  C08J5/18 ,  D01D5/00 ,  D01F6/14 ,  D01F

Abstract: High modulus and high strength articles of polyvinyl-­alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solu­tion of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.

公开(公告)号：BR8603999A

公开(公告)日：1987-04-07

申请号：BR8603999

申请日：1986-08-22

Applicant: STAMICARBON

Inventor： MOKVELD FLORISBERTUS CORNELIS ,  SCHELLEKENS RONALD MICHAEL ALE

IPC: B29C55/00 ,  B29D7/00 ,  C08J5/18 ,  D01D5/00 ,  D01F6/14 ,  C08L29/04

Abstract: High modulus and high strength articles of polyvinyl-­alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solu­tion of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.

公开(公告)号：BR8603998A

公开(公告)日：1987-04-07

申请号：BR8603998

申请日：1986-08-22

Applicant: STAMICARBON

Inventor： SCHELLEKENS RONALD MICHAEL ALE ,  RUTTEN HENDRIKUS JOHANNES JOZE ,  LEMSTRA PIETER JAN

IPC: B29C55/00 ,  B29D7/00 ,  C08J5/18 ,  D01D5/00 ,  D01F6/14 ,  C08L29/04

Abstract: High modulus and high strength articles of polyvinyl-­alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solu­tion of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.

公开(公告)号：AU6165486A

公开(公告)日：1987-02-26

申请号：AU6165486

申请日：1986-08-20

Applicant: STAMICARBON

Inventor： MOKVELD FLORIBERTUS CORNELIS H ,  SCHELLEKENS RONALD MICHAEL ALE

IPC: B29C55/00 ,  B29D7/00 ,  C08J5/18 ,  D01D5/00 ,  D01F6/14 ,  C08J5/00

Abstract: High modulus and high strength articles of polyvinyl-­alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solu­tion of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.