公开(公告)号：US20190160794A1

公开(公告)日：2019-05-30

申请号：US16092504

申请日：2017-04-11

Applicant: Continental Structural Plastics, Inc.

Inventor： Philippe BONTE ,  Marc-Philippe TOITGANS ,  Dominique BOYER ,  Michael J. SIWAJEK ,  Probir Kumar GUHA ,  Michael J. HILTUNEN ,  Shane SKOP

IPC: B32B27/08 ,  B32B27/12 ,  B32B27/20 ,  B32B7/12 ,  B29C70/12 ,  B29C70/78

Abstract: A process is provided for molding a resin matrix around a distribution of well distributed epoxy coated glass fibers to produce an article. The article is mass produced by the molding process based on a one or more layer structure, with an outer panel having a high degree of surface smoothness common to automotive body panels and a comparatively high tensile strength joinder thereto. The epoxy coated glass fibers are present in a single panel of an article or all such panels of a multiple layer article. The epoxy coated glass fibers can be present in an articles in a form of: chopped glass fibers that are intermixed and vary in orientation, a woven roving containing predominately epoxy glass fibers with carbon fibers dispersed there through, or non-woven fiber mats.

公开(公告)号：US20190119488A1

公开(公告)日：2019-04-25

申请号：US16092548

申请日：2017-04-19

Applicant: Continental Structural Plastics, Inc.

Inventor： Probir Kumar GUHA ,  Michael J. HILTUNEN ,  Shane SKOP

IPC: C08L67/00 ,  C08J5/18

Abstract: A polyurea additive is provided that strengthens a given base sheet molding composition (SMC) An isocyanate containing species and an amine containing species are introduced into an uncured polymeric resin of a sheet molding compound (SMC) under conditions suitable for the formation of a polyurea polymer network. Upon cure of the SMC base resin, an interpenetrating network is formed that is stronger than the base SMC absent the polyurea. As a result, an article is formed from the SMC that is stronger at the same dimensions than a conventional article or thinned to achieve the same properties to obtain a lightweight article compared to that formed from conventional SMC. The properties of the article are also attractive relative to aluminum for the formation of vehicle body and exterior panels.

公开(公告)号：US20170107366A1

公开(公告)日：2017-04-20

申请号：US15305268

申请日：2015-06-15

Applicant: CONTINENTAL STRUCTURAL PLASTICS, INC.

Inventor： Probir Kumar GUHA ,  Michael J. SIWAJEK ,  Michael J. HILTUNEN ,  Shane SKOP

IPC: C08L23/12 ,  C08J3/20 ,  C08J3/00

CPC classification number: C08L23/12 ,  C08J3/005 ,  C08J3/203 ,  C08J2323/12 ,  C08J2401/02 ,  C08K7/14 ,  C08L1/02 ,  C08L97/02 ,  C08L99/00 ,  C08L2205/16 ,  C08L2205/18 ,  C08L2207/04

Abstract: A molding composition formulation is provided that includes polypropylene, glass fiber, and a cellulosic powder used as a filler. The filler may be at least one of coconut shell powder, walnut shell powder, or rice hull. The molding composition formulation may further include natural cellulosic fiber illustratively including at least one of coconut fibers, bamboo fibers, sugar cane fibers, or banana skin fibers. The molding composition may be compression moldable long fiber thermoplastic (LFTD). The molding composition formulation may be used in thermoforming. In a specific embodiment of the molding composition, the formulation proportion of the polypropylene is 50 to 60 percent of the formulation; and the polypropylene substitute is 5 to 15 percent of the formulation, and in an alternative embodiment, the formulation proportion of the polypropylene is 40 to 80 percent, the cellulosic powder is 1 to 25 percent, and the glass fiber is 1 to 50 percent.