GB536012A - Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same - Google Patents

Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same

Info

Publication number
GB536012A
GB536012A GB21469/39A GB2146939A GB536012A GB 536012 A GB536012 A GB 536012A GB 21469/39 A GB21469/39 A GB 21469/39A GB 2146939 A GB2146939 A GB 2146939A GB 536012 A GB536012 A GB 536012A
Authority
GB
United Kingdom
Prior art keywords
fibres
therefor
relating
methods
forming
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
GB21469/39A
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.)
Celotex Corp
Original Assignee
Celotex Corp
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 Celotex Corp filed Critical Celotex Corp
Publication of GB536012A publication Critical patent/GB536012A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch

Abstract

536,012. Cellulose-pulp. CELOTEX CORPORATION. July 24, 1939, No. 21469. Convention date, April 13. [Class 2 (ii)] [Also in Group VIII] Soft, coarse, porous, absorbent, felt-like sheet material e.g. for roofing or flooring felt, is made with fibres obtained by de-fibrating mechanically cellulosic material at a temperature above 212‹F., such that the middle lamella of the material is markedly softened, and in an essentially gaseous environment e.g. of or including steam, chemically inert to the material. The time of such treatment may be 20 to 40 seconds. As raw material may be used southern pine, spruce, gumwood, willow, or cotton wood chips, from which resinous and volatile substances may have been removed, and which may be mixed prior to the head-box with kraft pulp, rags, or bagasse.
GB21469/39A 1939-04-13 1939-07-24 Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same Expired GB536012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US536012XA 1939-04-13 1939-04-13

Publications (1)

Publication Number Publication Date
GB536012A true GB536012A (en) 1941-04-30

Family

ID=21985353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21469/39A Expired GB536012A (en) 1939-04-13 1939-07-24 Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same

Country Status (1)

Country Link
GB (1) GB536012A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503454A (en) * 1944-12-09 1950-04-11 Johns Manville Roofing felt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503454A (en) * 1944-12-09 1950-04-11 Johns Manville Roofing felt

Similar Documents

Publication Publication Date Title
DE2732578A1 (en) CARDBOARD COMPOUND
SE7608696L (en) WAY TO PRODUCE CELLULOSIS-CONTAINING MASSES IN HIGH YIELD AND AT LEGAL COST
US2169473A (en) Method of producing cellulose pulp
GB497982A (en) Improvements in or relating to a fermentation process for the preparation of paper-pulp from incrusted cellulose fibres
GB536012A (en) Improvements in or relating to porous absorbent sheets and fibres therefor and methods of forming the same
US1857432A (en) Felt
US2131097A (en) Impregnated felt
ES390676A1 (en) Method in the manufacture of lignocellulosic fibreboard
US1790839A (en) op berlin
DE2714730C3 (en) Process for the production of a thermo-mechanical material from fiber-containing material containing ligno-cellulose
GB961866A (en) Tobacco sheet manufacture
US1891730A (en) Composition for and method of papermaking
US3704201A (en) Method of making lignin containing groundwood by hydrolysis and alkali treatment of wood chips
US1948979A (en) Weather resisting material
US2142334A (en) Sheet material
US2029310A (en) Felt and process of making same
US2188533A (en) Process of making felt
GB522880A (en) Manufacture of puffed, distended, or internally disrupted sheets or boards comprising felted leather fibres
GB423281A (en) Improvements in paper for paper money and other documents and papers of value
DE1815383C3 (en) Process for the production of wood pulp masses
DE1955641C3 (en) Process for the production of bright white pulp for paper manufacture
AT311168B (en) Process for producing an unbleached pulp of great brightness and mechanical strength
GB345332A (en) Improvements in or relating to fibrous resinous compositions
GB675026A (en) Method of rapid manufacture of agglomerated fibrous materials
Fahmy et al. A study of the production of hardboard from some indigenous agricultural residues