IP Library Patent Application 17618567
Patent Application
App. No. 17/618,567

SHEET FOR MOLDING AND MOLDED ARTICLE

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Quick Facts
Patent No.
US None
App. No.
17/618,567
Abstract

The purpose of the present invention is to provide a sheet for molding that is easily used for various applications. The sheet for molding includes a nonwoven fabric and a resin layer laminated on the nonwoven fabric, wherein the nonwoven fabric includes a fiber having a birefringence Δn of 0.005 or more and 0.050 or less; and the resin layer includes a resin having a number average molecular weight of 5,000 or more and 150,000 or less, and has an infiltrating portion infiltrating into the nonwoven fabric and a non-infiltrating portion not infiltrating into the nonwoven fabric.

Claims (10)

1 . A sheet for molding comprising a nonwoven fabric and a resin layer laminated on the nonwoven fabric, wherein

the nonwoven fabric comprises a fiber having a birefringence Δn of 0.005 or more and 0.050 or less; and

the resin layer comprises a resin having a number average molecular weight of 5,000 or more and 150,000 or less, and has an infiltrating portion infiltrating into the nonwoven fabric and a non-infiltrating portion not infiltrating into the nonwoven fabric.

2 . The sheet for molding according to claim 1 , wherein the fiber comprises a thermoplastic resin having an intrinsic viscosity of 0.3 dl/g or more and 0.9 dl/g or less.

3 . The sheet for molding according to claim 1 , wherein the resin is at least one member selected from the group consisting of a polyester-based resin, a polyester urethane-based resin, a polyimide-based resin, a polyamideimide-based resin, a phenoxy-based resin, an olefin-based resin, and an acrylic resin.

4 . The sheet for molding according to claim 2 , wherein the fiber further comprises a high Tg organic compound being higher in glass transition temperature than the thermoplastic resin.

5 . The sheet for molding according to claim 1 , wherein the resin layer further comprises a crosslinking agent.

6 . The sheet for molding according to claim 1 , wherein an average thickness of the non-infiltrating portion is smaller than an average thickness of the nonwoven fabric.

7 . The sheet for molding according to claim 1 , wherein an average thickness of the non-infiltrating portion is larger than an average thickness of the infiltrating portion.

8 . A molded article obtained by molding the sheet for molding according to claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: TOYOBO CO., LTD.
To: TOYOBO MC CORPORATION
Reel/Frame 064649/0628 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2021
From: INATOMI, SHINICHIRO; MATSUI, MARIKO; YANE, TAKEHISA; TAGA, KEIKO; TAKAGI, NAOKI; SHIMODA, MASASHI
To: TOYOBO CO., LTD.
Reel/Frame 058369/0025 →