STORAGE-STABLE 1K POLYURETHANE PREPREGS AND SHAPED BODIES MADE OF POLYURETHANE COMPOSITIONS PRODUCED FROM THOSE PREPREGS

• Main Authors: RALPH ALDRIDGE, LOESCH HOLGER, ELKE GOLLAN, SUSANNE KREISCHER, EIKE LANGKABEL, SPYROU EMMANOUIL DR, ANDREA DIESVELD
• Format: Patent
• Language: English; Japanese
• Published: 14.06.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide: a simpler process for producing polyurethane-based prepreg systems allowing problem-free handling that are based on polyurethane compositions; prepregs comprising polyurethane matrix material which can be produced by a simple process; and moldings produced from the prepregs.SOLUTION: A prepreg essentially comprises A) at least one fibrous carrier and B) at least one polyurethane composition, where the polyurethane composition has a Tg of less than 40°C and comprises an essentially internally blocked and/or blocking agent-blocked di- and/or polyisocyanates and/or polyaddition compounds thereof.SELECTED DRAWING: None 【課題】ポリウレタン組成物をベースとし、問題なく取り扱い可能なポリウレタンベースのプリプレグ系のより単純な製造方法ならびに単純な方法で製造可能な、ポリウレタンマトリックス材料を有するプリプレグおよびこのプリプレグから製造される成形体。【解決手段】プリプレグが、Ａ）少なくとも１種の繊維基材、およびＢ）少なくとも１種のポリウレタン組成物から実質的に構成され、４０℃未満のＴｇを有する前記ポリウレタン組成物が、実質的に内部ブロックされたかつ／またはブロック剤によってブロックされたジイソシアネートおよび／またはポリイソシアネートおよび／またはこれらの重付加化合物を含有する。【選択図】なし