CROSSLINKED POLYPROPYLENE FOAM AND LAMINATES MADE THEREFROM

• Main Authors: JESSE J. BALDWIN, GORDON V. SHARPS, PAWEL SIERADZKI
• Format: Patent
• Language: English; Spanish
• Published: 11.06.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

A foam composition comprising about 50 to about 95 parts by weight of at least one polypropylene polymer having a density of about 85 to about 125 kg/m3, wherein the composition has blister rating of 1 -2, an unaged peel tear strength of at least about 34 N and a heat aged peel tear strength of at least about 28 N when laminated to a support layer. Una composición de espuma que comprende aproximadamente 50 a aproximadamente 95 partes por peso de al menos un polímero de polipropileno que tiene una densidad de aproximadamente 85 a aproximadamente 125 kg/m3, en donde la composición tiene una valoración de burbujas de 1-2, una resistencia al rasgado por desprendimiento sin envejecer de al menos aproximadamente 34 N y una resistencia al rasgado por desprendimiento envejecida con calor de al menos aproximadamente 28 N cuando se lamina a una capa en una capa de soporte.