GB478854A - Improvements in or relating to the manufacture of cellulosic pellicles - Google Patents

Improvements in or relating to the manufacture of cellulosic pellicles

Info

Publication number
GB478854A
GB478854A GB89/37A GB8937A GB478854A GB 478854 A GB478854 A GB 478854A GB 89/37 A GB89/37 A GB 89/37A GB 8937 A GB8937 A GB 8937A GB 478854 A GB478854 A GB 478854A
Authority
GB
United Kingdom
Prior art keywords
per cent
cellulose
ether
deformation
aqueous solution
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
GB89/37A
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.)
British Cellophane Ltd
Original Assignee
British Cellophane 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 British Cellophane Ltd filed Critical British Cellophane Ltd
Publication of GB478854A publication Critical patent/GB478854A/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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)

Abstract

Cellulosic films are softened by means of a high-boiling softening agent belonging to one of the four classes mentioned below, and which is appreciably water-soluble and has a hygroscopicity of from 1 to 80. The four classes of substances are compounds containing (a) both ether and ester groups, (b) keto and ester groups with or without ether groups, (c) hydroxyl and ester groups with or without ether groups, but which do not contain more than one hydroxyl group for each ester group, and (d) compounds of carbamic acid esterified with an alcohol containing an ether group. A number of compounds of each class are specified. By a hygroscopicity of 80, is meant that the substance will absorb 80 per cent of its weight of water when exposed in a thin layer to an atmosphere of 95 per cent relative humidity at a temperature of 25 DEG C. over a period of 120 hours. The cellulosic films so treated should have a degree of deformation not in excess of 3,0 when measured in the machine or longitudinal direction of the film. By degree of deformation is meant the percentage change in length of a strip of film, in equilibrium in an atmosphere of 95 per cent relative humidity at 35 DEG C., when it is allowed to reach equilibrium in a dry atmosphere at the same temperature. The softener employed should have a boiling point not less than 135 DEG C. at a pressure of 12 mm. of mercury. The softener may be applied to the film from aqueous solution or from an aqueous solution containing small amounts of water-miscible organic solvents, e.g. methanol, ethanol or acetone. The process is applicable to the treatment of foils from viscose, cuprammonium cellulose solutions, or aqueous alkaline solutions of cellulose glycollic acid, glycol cellulose, lowly etherified or lowly esterified celluloses. In an example, a gel sheet of regenerated cellulose is impregnated with a 4 per cent aqueous solution of bis-ethoxyethyl malate and dried. It has a deformation of 2,3 compared with 4,0 to 4,4 for glycerol. Specification 439,084 is referred to.
GB89/37A 1936-01-04 1937-01-01 Improvements in or relating to the manufacture of cellulosic pellicles Expired GB478854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57634A US2170827A (en) 1936-01-04 1936-01-04 Cellulosic pellicles and methods for producing same

Publications (1)

Publication Number Publication Date
GB478854A true GB478854A (en) 1938-01-26

Family

ID=22011831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89/37A Expired GB478854A (en) 1936-01-04 1937-01-01 Improvements in or relating to the manufacture of cellulosic pellicles

Country Status (2)

Country Link
US (1) US2170827A (en)
GB (1) GB478854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8586522B2 (en) 2011-09-02 2013-11-19 Dow Global Technologies Llc Glycol dilevulinates as coupling agents in cleaning formulations
WO2014035445A1 (en) 2012-08-31 2014-03-06 Dow Global Technologies Llc Glycol dilevulinates as coupling agents in cleaning formulations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8586522B2 (en) 2011-09-02 2013-11-19 Dow Global Technologies Llc Glycol dilevulinates as coupling agents in cleaning formulations
WO2014035445A1 (en) 2012-08-31 2014-03-06 Dow Global Technologies Llc Glycol dilevulinates as coupling agents in cleaning formulations

Also Published As

Publication number Publication date
US2170827A (en) 1939-08-29

Similar Documents

Publication Publication Date Title
US2445579A (en) Sheetlike light-polarizing complex of iodine and a polyvinyl compound with protective surface boric acid-polyvinyl compound complex
GB478854A (en) Improvements in or relating to the manufacture of cellulosic pellicles
US2273636A (en) Procedure for the dressing and softening of cellulose products
US2502782A (en) Method of coating paper
US2329741A (en) Cellulose ether derivatives and process for producing the same
US3112214A (en) Process for sizing cellulose sheets with a starch derivative bearing vicinalglycol groups
US2357380A (en) Antistatic coating for film
US2917397A (en) Cellulosic pellicle and method of preparation
US1947160A (en) Treating photographic film
US3000763A (en) Cellulosic materials plasticized with hydroxypropylglycerol
US2390391A (en) Iodization of textile fabrics
US2170828A (en) Pellicle and process for preparing same
US3043720A (en) Cellulosic materials plasticized with hydroxypropylsucrose
GB700646A (en) Improvements in the identification of photographic materials
US2658835A (en) Sizing medium and film sized therewith
GB497335A (en) Improvements in or relating to the preparation of coated materials
US2763030A (en) Method of precipitating and forming hydroxy alkyl cellulose into films
US2170829A (en) Film and process for preparing same
Richter Relative permanence of papers exposed to sunlight
US2170839A (en) Cellulosic pellicles and process for preparing same
GB504280A (en) Improvements in electrolytic cells
US2170840A (en) Cellulosic film and process for preparing same
GB592210A (en) Improvements in the manufacture of cellulose and other carbohydrate ethers and of materials made of or containing them
US3857778A (en) Method of rendering electrophoresis membrane transparent
GB395243A (en) A process of improving sheets and films of colloids