公开(公告)号：US20250042103A1

公开(公告)日：2025-02-06

申请号：US18718851

申请日：2022-12-05

Applicant: BASF SE

Inventor： Michael KALBE ,  Rainer SCHEIDHAUER ,  Sarunas TURCINSKAS ,  Juergen BLAUL ,  Marvin STEUBE

IPC: B29C70/12 ,  B29C70/40 ,  B29K311/10 ,  B29L7/00

Abstract: The invention relates to a process for producing a thermoformable polymer/fiber composite using an aqueous dispersion of a polymer P and a fibrous substrate, where the dispersion is obtained by free-radically initiated emulsion polymerization of a monomer composition composed of 5% to 30% by weight of one or more monomers M1 selected from esters of acrylic and/or methacrylic acid with alkanols having 2 to 8 carbon atoms, 70% to 95% by weight of styrene and/or methyl methacrylate (M2), and 0% to 10% by weight of at least one further ethylenically unsaturated compound (M3) which is copolymerizable with monomers M1 and M2, based in each case on the total amount of the monomers M, in an aqueous medium in the presence of a polymer A or a polymer mixture A, where polymer A or polymer mixture A is formed from 40% to 70% by weight of acrylic acid (monomer A1), 30% to 60% by weight of maleic acid and/or maleic anhydride (monomer A2), 0% to 5% by weight of at least one further ethylenically unsaturated compound which is copolymerizable with monomers A1 and A2 (monomer A3), and where the total amounts of monomers A add up to 100% by weight, to the composites obtainable thereby, to the use thereof for production of polymer/fiber moldings, to the process for producing the moldings and to the moldings themselves, and to the aqueous polymer dispersion used in accordance with the invention and a process for production thereof.

公开(公告)号：US20190153185A1

公开(公告)日：2019-05-23

申请号：US16098050

申请日：2017-05-30

Applicant: BASF SE ,  Construction Research & Technology GmbH

Inventor： Sven MOENNIG ,  Sarunas TURCINSKAS ,  Dirk WEINRICH ,  Andrea EISENHARDT ,  Christian RENNER ,  Juergen BOKERN ,  Alex POPOV ,  Gianpaolo TOMASI

IPC: C08J9/12 ,  B32B5/20 ,  B32B13/04 ,  B32B13/12 ,  B29C39/12 ,  B29C44/12 ,  B29C44/34 ,  C08G18/76 ,  C08G18/48 ,  C08J9/14 ,  E04C2/288

Abstract: The invention relates to a sandwich component composed of at least two building material plates which are arranged essentially parallel to one another at a distance from one another and have a polyurethane foam core between the spaced building material plates, wherein the ratio of the greatest measured compressive modulus of the polyurethane foam core in a direction oriented parallel to the building material plates to the compressive modulus of the polyurethane foam core in a direction oriented perpendicular to the building material plates is less than 1.7. To produce the sandwich components, a mixture of (a) at least one polyisocyanate component, (b) at least one component which comprises at least one polyfunctional compound which is reactive toward isocyanates and (c) at least one blowing agent is introduced by the high-pressure injection method into a hollow space between spaced building material plates. The process makes it possible to produce sandwich components whose foam core has reduced anisotropy combined with good insulation values.

公开(公告)号：US20180370211A1

公开(公告)日：2018-12-27

申请号：US15747460

申请日：2016-07-06

Applicant: BASF SE

Inventor： Anoop GUPTA ,  Sarunas TURCINSKAS ,  Gerhard ALBRECHT ,  Eva GUENTHER ,  Samuel WEISS ,  Michael KUTSCHERA ,  Lutz SCHAEFER

IPC: B32B37/12 ,  B32B7/12

Abstract: The present invention relates to a process for the preparation of a composite for thermal insulation comprising at least layers (L1), (L2) and (LB), the process comprising the steps of providing layer (L1) containing from 25 to 95% by weight of aerogel and from 5 to 75% by weight of fibers and from 0 to 70% by weight of fillers and layer (L2) containing from 25 to 95% by weight of aerogel and from 5 to 75% by weight of fibers and from 0 to 70% by weight of fillers; applying a composition (C1) comprising an inorganic binder on one surface of the layer (L1) or layer (L2) or layer (L1) and (L2), and combining layer (L1) and layer (L2) in a manner that composition (C1) is located between layer (L1) and (L2), wherein composition (C1) is applied in the form of a, as well as a composite for thermal insulation comprising at least layers (L1), (L2) and layer (LB) which is located between layers (L1) and (L2) and the use of said composite for thermal insulation.