Laminated Parts Made of Outer Layers and Polyurethane Sandwich Materials and Their Production

• Main Authors: HAAS PETER, PAUL REINER, GUARNIERI WALTER, LAMMECK ADOLF
• Format: Patent
• Language: English; Korean
• Published: 25.06.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

PURPOSE: Provided are a laminated part comprising an outer layer and a polyurethane sandwich material which is useful in the automobile industry and a method for producing the same. CONSTITUTION: The laminated part includes (A) a core, (B) fiber layers arranged on both sides of the core and impregnated with polyurethane resin, (C) an outer layer of Class A surface quality on one of the fiber layers, and, optionally, (D) a decorative layer on the second fiber layer. The polyurethane resin includes (1) a polyisocyanate component; (2) a polyol constituent with an average OH number from 300 to 700, containing a short-chain and one long-chain polyol, the initial polyols having a functionality of from 2 to 6; (3) water; (4) activators; (5) stabilizers; and, optionally, (6) other auxiliary materials, mold release agents and additives. The core(A) comprises a materials selected from the group consisting of thermoformable PUR(polyurethane resin) foams, paper honeycombs, metal honeycombs and plastic honeycombs. The fibers(B) are selected from one or more of the groups consisting of fiberglass mats, chopped fiberglass strand mats, random layers of fiberglass, fiberglass fabric, cut glass fibers, ground glass fibers, mineral fibers, natural fiber mats, natural knitted fabrics, cut natural fibers, cut natural fiber mats, non-woven fabrics based on polymer, carbon or aramid fibers, and knitted fabrics based on polymer, carbon or aramid fibers. The outer layer(C) comprises a material selected from the group consisting of metal foils, metal sheets and compact thermoplastic composites. 본 발명은 외부 층 및 폴리우레탄 샌드위치재를 포함하는 적층된 부품, 및 상기 적층된 부품의 제조 방법 및 그의 자동차 산업에서의 용도에 관한 것이다.