The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2015
Filed:
Jul. 14, 2011
Young MO JO, Icheon-si, KR;
Ssang OK Kim, Seoul, KR;
Gun Kyu Lee, Icheon-si, KR;
Jee Young Yoon, Seoul, KR;
Young Seung Jeon, Seoul, KR;
Young Mo Jo, Icheon-si, KR;
Ssang Ok Kim, Seoul, KR;
Gun Kyu Lee, Icheon-si, KR;
Jee Young Yoon, Seoul, KR;
Young Seung Jeon, Seoul, KR;
Daesang Corporation, Seoul, KR;
Abstract
Provided is expandable starch beads including a starch-monomer copolymer and a foaming agent impregnated in the starch-monomer copolymer, in which the starch-monomer copolymer is prepared by bonding at least one monomer selected from the group consisting of styrene, α-methylstyrene, lactide, lactic acid, acrylic acid, methacrylic acid, acrylic ester, methacrylic ester, acrylonitrile, acrylamide, and caprolactone to starch, and the foaming agent includes at least one selected from the group consisting of Cto Caliphatic hydrocarbon, Cto Chalogenated hydrocarbon, and carbon dioxide. Since the expandable starch beads have the similar properties to expandable polystyrene beads, and thereby can be foam-molded by equipment for foaming the expandable polystyrene beads, it is possible to produce foams with various sizes and various shapes.