logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12552111 B1

PDFFull Text
Date of Patent:
Feb. 17, 2026

Filed:

Dec. 11, 2018

Method for producing polyurethane sandwich molded parts

Applicant:

Basf SE, Ludwigshafen am Rhein, DE;

Inventors:

Georg Partusch, Lemfoerde, DE;

Juergen Schneider, Lemfoerde, DE;

Gerd Westermann, Lemfoerde, DE;

Klaus Schmutzer, Lemfoerde, DE;

Assignee:

BASF SE, Ludwigshafen am Rhein, DE;

Attorney:

Armstrong Teasdale LLP

Primary Examiner:

Michael A Tolin

Assistant Examiner:

Hana C Page

Int. Cl.
CPC ...
B29C 70/34 (2006.01); B29C 70/08 (2006.01); B32B 3/12 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 15/14 (2006.01); B32B 27/12 (2006.01); B32B 29/02 (2006.01); B32B 37/12 (2006.01); B32B 37/14 (2006.01); C08G 18/10 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); B29K 75/00 (2006.01); B29K 105/08 (2006.01); B29K 105/20 (2006.01); B29K 307/04 (2006.01); B29K 309/08 (2006.01); B29L 31/30 (2006.01);
U.S. Cl.
CPC ...
B29C 70/34 (2013.01); B29C 70/086 (2013.01); B32B 3/12 (2013.01); B32B 5/02 (2013.01); B32B 7/12 (2013.01); B32B 15/14 (2013.01); B32B 27/12 (2013.01); B32B 29/02 (2013.01); B32B 37/12 (2013.01); B32B 37/146 (2013.01); C08G 18/10 (2013.01); C08G 18/4841 (2013.01); C08G 18/7671 (2013.01); B29K 2075/00 (2013.01); B29K 2105/0872 (2013.01); B29K 2105/20 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01); B29K 2715/003 (2013.01); B29L 2031/30 (2013.01); B32B 2037/1261 (2013.01); B32B 2250/40 (2013.01); B32B 2255/26 (2013.01); B32B 2260/021 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2305/024 (2013.01); B32B 2307/738 (2013.01); B32B 2313/04 (2013.01); B32B 2315/085 (2013.01); B32B 2605/00 (2013.01);
Abstract

Described herein is a process for producing polyurethane sandwich moldings including at least one core layer and at least one reinforcing fiber layer, where (i) at least one reinforcing fiber layer is applied onto a core layer and a moisture-curing polyurethane adhesive is applied to a reinforcing fiber layer, (ii) the part from (i) is placed into a mold and pressed in the mold and the moisture-curing polyurethane adhesive is cured, and (iii) the molding from (ii) is removed from the mold and optionally subjected to further operations, where the moisture-curing polyurethane adhesive is applied before or after application of the reinforcing fiber layer onto the at least one core layer and for the curing the moisture-curing polyurethane adhesive is brought into contact with water or with a solution comprising water. Also described herein are a polyurethane sandwich molding obtainable by such a process and a method of using a polyurethane sandwich molding in vehicles.

Find Patent Forward Citations

Loading…