GB539785A - Artificial sponges - Google Patents

Artificial sponges

Info

Publication number
GB539785A
GB539785A GB311440A GB311440A GB539785A GB 539785 A GB539785 A GB 539785A GB 311440 A GB311440 A GB 311440A GB 311440 A GB311440 A GB 311440A GB 539785 A GB539785 A GB 539785A
Authority
GB
United Kingdom
Prior art keywords
viscose
sponges
thickness
pressure
artificial sponges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB311440A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sponcel Ltd
Original Assignee
Sponcel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sponcel Ltd filed Critical Sponcel Ltd
Priority to GB311440A priority Critical patent/GB539785A/en
Publication of GB539785A publication Critical patent/GB539785A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives

Abstract

539,785. Viscose sponges. SPONCEL, Ltd., and BARKER, C. V. Feb. 19, 1940, No. 3114. [Class 2 (ii)] An artificial sponge, made from a cellulose derivative such as viscose, is subjected to heat and pressure ; this causes a considerable decrease in its thickness without increase in its surface dimensions, but it will swell to its normal thickness when immersed in water. The pressure employed may be 100 lb. per square inch and the temperature may be 90‹ C.
GB311440A 1940-02-19 1940-02-19 Artificial sponges Expired GB539785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB311440A GB539785A (en) 1940-02-19 1940-02-19 Artificial sponges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB311440A GB539785A (en) 1940-02-19 1940-02-19 Artificial sponges

Publications (1)

Publication Number Publication Date
GB539785A true GB539785A (en) 1941-09-24

Family

ID=9752176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB311440A Expired GB539785A (en) 1940-02-19 1940-02-19 Artificial sponges

Country Status (1)

Country Link
GB (1) GB539785A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525966A (en) * 1948-05-19 1950-10-17 Us Rubber Co Treatment of expanded articles
US2659935A (en) * 1950-03-18 1953-11-24 Christopher L Wilson Method of making compressed sponges
US2865283A (en) * 1955-03-30 1958-12-23 Lewis J Stoffer Method of forming dry compressed compact sponge unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525966A (en) * 1948-05-19 1950-10-17 Us Rubber Co Treatment of expanded articles
US2659935A (en) * 1950-03-18 1953-11-24 Christopher L Wilson Method of making compressed sponges
US2865283A (en) * 1955-03-30 1958-12-23 Lewis J Stoffer Method of forming dry compressed compact sponge unit

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