公开(公告)号：US20240181680A1

公开(公告)日：2024-06-06

申请号：US18284950

申请日：2022-03-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Supriya Mv ,  Bhaskar Patham ,  Qin Yuan ,  Rahul Valecha ,  Jose Sales Fernandez ,  Rodrigo Sandoval Rivera ,  Rob Donners

IPC: B29B15/12 ,  B29C70/20 ,  B29K23/00 ,  B29K309/08 ,  B29L7/00 ,  C08J5/08 ,  C08K7/14

CPC classification number: B29B15/122 ,  B29C70/20 ,  C08J5/08 ,  C08K7/14 ,  B29K2023/12 ,  B29K2309/08 ,  B29K2995/0097 ,  B29L2007/007 ,  C08J2323/12

Abstract: A process for the production of a glass fiber reinforced polymer tape includes a) unwinding from a package of at least one continuous glass multifilament strand; b) applying the impregnating agent to the continuous glass multifilament strands to form the impregnated continuous multifilament strands; c) applying a sheath of thermoplastic polymer around said multifilament strand to form a sheathed continuous multifilament strand, d) providing the plurality of sheathed continuous multifilament strands obtained in step c), e) placing the plurality of sheathed continuous multifilament strands in parallel alignment in the longitudinal direction, f) grouping the plurality of sheathed continuous multifilament strands, wherein steps e) and f) are performed such that the sheathed continuous multifilament strand can be consolidated and g) subsequently consolidating the plurality of sheathed continuous multifilament strands to form a tape, wherein the tex number of the glass multifilament strand is in the range from 520 to 980, and the amount of the at least one continuous glass multifilament strand in the composition is from 55 to 70 wt % on the basis of the total weight of the composition. The tape produced from the process has improved mechanical performance and low warpage when made into laminates.

公开(公告)号：US20220242068A1

公开(公告)日：2022-08-04

申请号：US17610995

申请日：2020-05-11

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Supriya MV ,  Bhaskar Patham ,  Jose Sales-Fernandez ,  Qin Yuan ,  Frank Heessels ,  Carmela Tufano

IPC: B29C70/52 ,  B29C48/08 ,  B29C48/00 ,  B29C48/156 ,  B29C48/285 ,  B29C48/91 ,  B29C48/88 ,  B29C70/20

Abstract: The invention relates to a process for the production of a tape comprising a plurality of impregnated continuous multifilament strands and a polymer sheath which intimately surrounds the plurality of impregnated continuous multifilament strands, wherein each of the plurality of impregnated multifilament strands extends in the longitudinal direction, wherein each of the plurality of impregnated continuous multifilament strands comprises at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the process comprising the steps of a) unwinding from a package the continuous glass multifilament strands, b) applying the impregnating agent to the continuous glass multifilament strands to form the plurality of impregnated continuous multifilament strands, c) placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction and d) applying a sheath of a thermoplastic polymer composition around the plurality of impregnated continuous multifilament strands of step c) to form the tape, wherein steps c) and d) are performed in a die having a guiding means arranged for placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction, wherein the plurality of impregnated continuous multifilament strands pass through a melt of the thermoplastic polymer composition inside of the die downstream of the guiding means.