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Title: Open-pore polyurethane product

Abstract

The method is described of producing an open-pore polyurethane foam having a porosity of at least 50% and a density of 0.1 to 0.5 g per cu cm, and which consists of coherent spherical particles of less than 10 mu diam separated by interconnected interstices. It is useful as a filter and oil absorbent. The product is admirably adapted to scavenging of crude oil from the surface of seawater by preferential wicking. The oil-soaked product may then be compressed to recover the oil or burned for disposal. The crosslinked polyurethane structures are remarkably solvent and heat-resistance as compared with known thermoplastic structures. Because of their relative inertness, they are useful filters for gasoline and other hydrocarbon compounds. (7 claims)

Inventors:
;
Issue Date:
OSTI Identifier:
7086345
Patent Number(s):
27917
Assignee:
US Atomic Energy Comm.
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 28 May 1969, United States of America (USA); Other Information: PAT-APPL-828,647
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 54 ENVIRONMENTAL SCIENCES; 02 PETROLEUM; POLLUTION CONTROL EQUIPMENT; DESIGN; POLYURETHANES; PRODUCTION; FILTERS; FOAMS; OIL SPILLS; POROSITY; COLLOIDS; DISPERSIONS; EQUIPMENT; MATERIALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYAMIDES; POLYMERS; SYNTHETIC MATERIALS; 360401* - Polymers & Plastics- Preparation & Fabrication- (-1987); 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989); 020900 - Petroleum- Environmental Aspects

Citation Formats

Jefferson, R T, and Salyer, I O. Open-pore polyurethane product. United States: N. p., 1974. Web.
Jefferson, R T, & Salyer, I O. Open-pore polyurethane product. United States.
Jefferson, R T, and Salyer, I O. Sun . "Open-pore polyurethane product". United States.
@article{osti_7086345,
title = {Open-pore polyurethane product},
author = {Jefferson, R T and Salyer, I O},
abstractNote = {The method is described of producing an open-pore polyurethane foam having a porosity of at least 50% and a density of 0.1 to 0.5 g per cu cm, and which consists of coherent spherical particles of less than 10 mu diam separated by interconnected interstices. It is useful as a filter and oil absorbent. The product is admirably adapted to scavenging of crude oil from the surface of seawater by preferential wicking. The oil-soaked product may then be compressed to recover the oil or burned for disposal. The crosslinked polyurethane structures are remarkably solvent and heat-resistance as compared with known thermoplastic structures. Because of their relative inertness, they are useful filters for gasoline and other hydrocarbon compounds. (7 claims)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1974},
month = {2}
}