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1. WO2005073301 - EXPANDED POLYSTYRENE BEAD HAVING FUNCTIONAL SKIN LAYER, MANUFACTURING PROCESS THEREOF, AND FUNCTIONAL EPS PRODUCT AND MANUFACTURING PROCESS THEREOF USING THE SAME

Publication Number WO/2005/073301
Publication Date 11.08.2005
International Application No. PCT/KR2004/000182
International Filing Date 30.01.2004
IPC
C08J 9/16 2006.1
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 or C08H142
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
16Making expandable particles
CPC
B29C 44/3461
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
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
34Auxiliary operations
3461Making or treating expandable particles
C08J 2325/06
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
2325Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
02Homopolymers or copolymers of hydrocarbons
04Homopolymers or copolymers of styrene
06Polystyrene
C08J 2431/00
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
2431Characterised by the use of copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
C08J 9/228
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
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
22After-treatment of expandable particles; Forming foamed products
228Forming foamed products
C08J 9/365
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
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
36After-treatment
365Coating
C08L 25/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
25Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
02Homopolymers or copolymers of hydrocarbons
04Homopolymers or copolymers of styrene
06Polystyrene
Applicants
  • PARK, Bong-Kuk [KR]/[KR]
Inventors
  • PARK, Bong-Kuk
Agents
  • KIM, Kyung-Mi
Priority Data
Publication Language English (en)
Filing Language Korean (KO)
Designated States
Title
(EN) EXPANDED POLYSTYRENE BEAD HAVING FUNCTIONAL SKIN LAYER, MANUFACTURING PROCESS THEREOF, AND FUNCTIONAL EPS PRODUCT AND MANUFACTURING PROCESS THEREOF USING THE SAME
(FR) PERLE DE POLYSTYRENE EXPANSE A PEAU FONCTIONNELLE, PROCEDE DE FABRICATION CORRESPONDANT, ET PRODUIT EN POLYSTYRENE EXPANSE FONCTIONNEL AINSI QUE PROCEDE DE FABRICATION CORRESPONDANT
Abstract
(EN) Disclosed herein are expanded polystyrene particles having a polyvinyl acetate resin-based functional skin layer formed on the surface of expanded polystyrene particles. Further disclosed are a process for producing the expanded polystyrene particles and the use of the expanded polystyrene particles. According to the expanded polystyrene particles of the present invention, inherent properties of the expanded polystyrene, e.g., light weight, thermal insulation properties, shape stability, buffering properties and sound absorption, are ensured, and superior low-temperature bonding properties, air-tightness, waterproofness and durability are provided by the vinyl acetate based polymer constituting the skin layer. Optionally, various functional additives, including flame retardants, water repellents, antibacterial agents, colorants, flavoring agents, etc., can be added to the polyvinyl acetate resin to impart a variety of functions to the expanded polystyrene particles in a simple manner.
(FR) L'invention concerne des particules de polystyrène expansé à peau fonctionnelle à base de résine d'acétate de polyvinyle établie sur la surface des particules, ainsi qu'un procédé de fabrication correspondant, et l'utilisation des particules. Ces particules ont des propriétés inhérentes au polystyrène expansé, à savoir légèreté, isolation thermique, stabilité de forme, fonction de tampon et absorption phonique. De plus, le polymère à base d'acétate de vinyle constituant la peau améliore d'autres propriétés : liaison à basse température, imperméabilité à l'air, étanchéité et durabilité. Eventuellement, divers additifs fonctionnels, y compris des agents ignifuges, hydrophobes, antibactériens, colorants, aromatisants, etc., peuvent être ajoutés à la résine susmentionnée, ce qui confère diverses fonctions aux particules, dans des conditions simples.
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