Processing

Please wait...

Settings

Settings

Goto Application

1. WO2021061972 - LIGHT-TRANSMISSIVE FOAM COMPOSITION AND PROCESS

Publication Number WO/2021/061972
Publication Date 01.04.2021
International Application No. PCT/US2020/052477
International Filing Date 24.09.2020
IPC
B29C 47/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
B29C 47/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
04of multilayered or multicoloured articles
06Multilayered articles
B29C 69/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
69Combinations of shaping techniques not provided for in a single one of main groups B29C39/-B29C67/135; Apparatus therefor
CPC
C08J 2201/026
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2201Foams characterised by the foaming process
02characterised by mechanical pre- or post-treatments
026Crosslinking before of after foaming
C08J 2205/044
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2205Foams characterised by their properties
04characterised by the foam pores
044Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
C08J 2323/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
C08J 2323/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
06Polyethene
C08J 2323/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
10Homopolymers or copolymers of propene
C08J 2323/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
10Homopolymers or copolymers of propene
12Polypropene
Applicants
  • SEKISUI VOLTEK, LLC [US]/[US]
Inventors
  • O'MALLEY, Kevin
  • SHIMURA, Keigo
Agents
  • CAMPBELL, Jason
Priority Data
62/904,68624.09.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGHT-TRANSMISSIVE FOAM COMPOSITION AND PROCESS
(FR) COMPOSITION DE MOUSSE TRANSMETTANT LA LUMIÈRE ET PROCÉDÉ
Abstract
(EN)
A polyolefin foam having improved light-transmittance comprises an average cell size of about 70 microns to about 500 microns; a total cell wall thickness to gauge ratio of between about 0.15 to about 0.55; a basis weight of about 0.00005 lb/in2 to about 0.00050 lb/in2; an L color solid value of about 95 to about 45; and a light transmittance of about 10% to about 50% according to JIS K 7361-1. A process for producing a polyolefin foam having improved light transmittance comprises extruding a foamable sheet at a pressure from about 1 psi to about 55 psi, and foaming the foamable sheet with a foaming agent having an average diameter of about 10 to about 25 microns to produce a foam having a light transmittance of about 10% to about 50% according to JIS K 7361-1.
(FR)
L'invention concerne une mousse de polyoléfine ayant une transmittance de lumière améliorée, comprenant une taille de cellule moyenne d'environ 70 micromètres à environ 500 micromètres ; un rapport total de jauge à l'épaisseur de paroi cellulaire compris entre environ 0,15 et environ 0,55 ; un poids de base d'environ 0,00005 livre/po2 à environ 0,00050 livre/po2 ; une valeur solide de couleur L d'environ 95 à environ 45 ; et une transmittance de lumière d'environ 10 % à environ 50 % selon la norme JIS K 7361-1. Un procédé de production d'une mousse de polyoléfine ayant une transmittance de lumière améliorée comprend l'extrusion d'une feuille expansible à une pression d'environ 1 psi à environ 55 psi et le moussage de la feuille expansible avec un agent moussant ayant un diamètre moyen d'environ 10 à environ 25 micromètres pour produire une mousse ayant une transmittance de lumière d'environ 10 % à environ 50 % selon la norme JIS K 7361-1.
Also published as
Latest bibliographic data on file with the International Bureau