FR37606E - Improvements in processes for the preparation of crotonic ethers of cellulose - Google Patents

Improvements in processes for the preparation of crotonic ethers of cellulose

Info

Publication number
FR37606E
FR37606E FR37606DA FR37606E FR 37606 E FR37606 E FR 37606E FR 37606D A FR37606D A FR 37606DA FR 37606 E FR37606 E FR 37606E
Authority
FR
France
Prior art keywords
crotonic
ethers
cellulose
processes
preparation
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
Other languages
French (fr)
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Application granted granted Critical
Publication of FR37606E publication Critical patent/FR37606E/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/08—Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms, e.g. propionate or butyrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
FR37606D 1929-11-08 1929-11-08 Improvements in processes for the preparation of crotonic ethers of cellulose Expired FR37606E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR37606T 1929-11-08

Publications (1)

Publication Number Publication Date
FR37606E true FR37606E (en) 1931-01-08

Family

ID=8674217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR37606D Expired FR37606E (en) 1929-11-08 1929-11-08 Improvements in processes for the preparation of crotonic ethers of cellulose

Country Status (1)

Country Link
FR (1) FR37606E (en)

Similar Documents

Publication Publication Date Title
FR37606E (en) Improvements in processes for the preparation of crotonic ethers of cellulose
FR684550A (en) Improvements in processes for the preparation of crotonic ethers of cellulose
FR686024A (en) Improvement in processes for obtaining plant albumins
FR727303A (en) Improvements in processes for the manufacture of compositions or solutions of cellulose ethers
FR759012A (en) Improvements to the processes for obtaining alumina
FR816205A (en) Improvements in processes for the manufacture of pure cellulose
FR688436A (en) Process for the preparation of formaldehyde
FR815244A (en) Spectrophotometric device for studying the <in vivo> reduction of oxyhemoglobin
FR694371A (en) Improvements to the processes for obtaining cut-out silhouettes
FR698320A (en) Improvements to the processes for obtaining porous materials for construction
FR49455E (en) Spectrophotometric device for studying the "in vivo" reduction of oxyhemoglobin
FR634032A (en) Process for the preparation of highly porous lead aggregates
FR702086A (en) Improvements to the processes for obtaining sound films
FR703338A (en) Process for the preparation of cellulose ethers
FR615879A (en) Improvements in processes and apparatus for the manufacture of cellulose acetate
FR700791A (en) combined belt equipment for airmen or parachutists
FR837431A (en) Improvements to catalytic agents and processes for preparing them
FR685314A (en) Process for the preparation of alpha-di-phenyl-imido-urea
FR38141E (en) Process for the preparation of highly porous lead aggregates
FR823976A (en) Improvements to the processes for the preparation of swelling materials
FR838432A (en) Instrument for spectroscopic determination of the reduction coefficient of oxyhemoglobin
FR836077A (en) Improvements in processes for obtaining protective coatings
AU1909929A (en) Improvements relating' tothe production of crotonic aldehyde
FR831997A (en) Improvements in processes for the preparation of stable copper hydrate
FR675439A (en) Process for the preparation of urea