[특허]Precast surface paving overlay comprising rubber crumbs and clay particles

[미국특허] Precast surface paving overlay comprising rubber crumbs and clay particles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-005/16
출원번호	US-0202450 (1994-02-28)
발명자 / 주소	Crivelli Henry (1505 N. Riverside Dr. Pompano Beach FL 33062)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

A rubber tire recycling process comprises the steps of granulating black rubber tire side walls and treads and granulating white rubber tire side walls to form coarse rubber crumbs, mixing the coarse rubber crumbs with fine clay particles to form a closely packed mixture, thoroughly wetting the surfaces of the coarse particles with a uncured EPDM rubber to provide a fluid, casting the fluid into a sheet-like configuration, and curing the sheet-like configuration under sufficient heat and for a sufficient time to provide an environmentally compatible paver for outdoor or indoor surfaces.

대표청구항 ▼

An overlay for outdoor surfaces, said overlay consisting essentially of: (a) recycled crumbs composed of black tire rubber and white tire rubber, said rubber crumbs having fibrillar surfaces with asperities; wherein said black tire rubber, by weight thereof, consists essentially of from 8 to 25% of organic solvent residue, from 5 to 10% of an inorganic residue, from 25 to 45% of carbon black, from a trace to 2% moisture, and from 35 to 50% of vulcanized hydrocarbon rubber; wherein said white tire rubber, by weight thereof, consists essentially of from 8 to 25% of organic solvent residue, from 5 to 10% of an inorganic residue, from 25 to 45% of a first clay, from a trace to 2% moisture, and from 35 to 50% of vulcanized hydrocarbon rubber; wherein said rubber crumbs have a mesh size averaging approximately 16; (b) a second clay in particle form composed of aluminosilicate; wherein said second clay particles have a mesh size averaging approximately 350; (c) a binder composed primarily of ethylene-proplylenediene rubber and a vulcanizing agent selected from the group consisting of sulfur and peroxide; wherein said rubber crumbs and said second clay particles are present in approximately equal amounts by weight, and, in parts by total weight of said overlay, the combination of said rubber crumbs and said second clay particles ranges from 45 to 65, and said binder ranges from 25 to 35; wherein said binder thoroughly contacts the surfaces of said rubber crumbs and said second clay particles; wherein said rubber crumbs and said second clay particles form an internal phase that is closely packed; wherein said binder forms an external phase; wherein said overlay has a hardness of at least 40 Shore A; wherein said overlay is approximately ¼inch in thickness; and wherein said overlay has at its upper surface communicating channels and stippled lands.

이 특허를 인용한 특허 (30) 인용/피인용 타임라인 분석

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Rink, Glenn R.; Morris, James F.; Stelpstra, Stephen C.; Rosania, Robert L.; Hegeman, Jan R.; Allen, Peter A., Systems for ameliorating aqueous hydrocarbon spills.
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Pignataro ; Jr. Alfred J., Used tire recycling including sorting tires, shredding sidewalls, stacking tread strips, and uniformly dimensioning and.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Precast surface paving overlay comprising rubber crumbs and clay particles 원문보기