PH14624A - Preparation of cellulose nitrite - Google Patents

Preparation of cellulose nitrite

Info

Publication number
PH14624A
PH14624A PH17356A PH17356A PH14624A PH 14624 A PH14624 A PH 14624A PH 17356 A PH17356 A PH 17356A PH 17356 A PH17356 A PH 17356A PH 14624 A PH14624 A PH 14624A
Authority
PH
Philippines
Prior art keywords
cellulose
ester
water
nitrite
solvent
Prior art date
Application number
PH17356A
Inventor
Richard G Schweiger
Original Assignee
Schweiger Richard Georg
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 Schweiger Richard Georg filed Critical Schweiger Richard Georg
Publication of PH14624A publication Critical patent/PH14624A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/34Introducing sulfur atoms or sulfur-containing groups
    • C08F8/36Sulfonation; Sulfation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00Preparation of derivatives of starch
    • C08B31/02Esters
    • C08B31/06Esters of inorganic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/02Cellulose nitrate, i.e. nitrocellulose
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/14Cellulose sulfate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/30Introducing nitrogen atoms or nitrogen-containing groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/42Introducing metal atoms or metal-containing groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1521125 Cellulose nitrites, sulphates and nitrates R G SCHWEIGER 8 July 1975 [10 July 1974] 28676/75 Heading C3A Nitrite esters of cellulose which may be converted to sulphates or nitrates are prepared by reacting water-containing, cellulose having not more than 12% water content with dinitrogen tetroxide or nitrosyl chloride at less than 50‹ C. with stirring in the presence of at least three parts by weight of a swelling or solubilizing solvent for the nitrite ester per part by weight of cellulose in the presence of proton acceptor. The cellulose preferably contains 4-12% water by treatment with a highly polar aprotic solvent. The solvent used is N,N-dimethylformamide and the highly polar aprotic solvent may be N,N-dimethylformamide, N,N-dimethylacetamide or pyridine. The sulphate ester may be prepared by reacting the nitrile ester with SO3 or a complex thereof and neutralizing with a base to give the alkali salt form.
PH17356A 1974-07-10 1975-07-02 Preparation of cellulose nitrite PH14624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48719674A 1974-07-10 1974-07-10

Publications (1)

Publication Number Publication Date
PH14624A true PH14624A (en) 1981-10-12

Family

ID=23934765

Family Applications (1)

Application Number Title Priority Date Filing Date
PH17356A PH14624A (en) 1974-07-10 1975-07-02 Preparation of cellulose nitrite

Country Status (17)

Country Link
JP (1) JPS5328345B2 (en)
AR (1) AR215842A1 (en)
AU (1) AU504059B2 (en)
BE (1) BE831238A (en)
BR (1) BR7504317A (en)
CA (1) CA1051880A (en)
DE (1) DE2530451A1 (en)
EG (1) EG12431A (en)
FI (1) FI62542C (en)
GB (1) GB1521125A (en)
HU (1) HU175674B (en)
IT (1) IT1045532B (en)
NL (1) NL169884C (en)
NO (2) NO141994C (en)
PH (1) PH14624A (en)
RO (1) RO76171A (en)
SE (1) SE7507871L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134191U (en) * 1977-03-30 1978-10-24
JPS57160590A (en) * 1981-03-31 1982-10-02 Matsushita Electric Works Ltd Welding method for contact point
DE102007035322B4 (en) * 2007-07-25 2011-11-17 Friedrich-Schiller-Universität Jena Process for the preparation of water-soluble, low-substituted cellulose sulfates

Also Published As

Publication number Publication date
EG12431A (en) 1979-06-30
NO141994B (en) 1980-03-03
FI751951A (en) 1976-01-11
FI62542B (en) 1982-09-30
JPS5131787A (en) 1976-03-18
AR215842A1 (en) 1979-11-15
HU175674B (en) 1980-09-28
NO141994C (en) 1980-06-25
AU8288175A (en) 1977-02-10
NL169884B (en) 1982-04-01
IT1045532B (en) 1980-05-10
DE2530451A1 (en) 1976-01-29
NO791389L (en) 1976-01-13
AU504059B2 (en) 1979-10-04
NL169884C (en) 1982-09-01
SE7507871L (en) 1976-01-12
GB1521125A (en) 1978-08-16
RO76171A (en) 1981-11-04
JPS5328345B2 (en) 1978-08-14
BR7504317A (en) 1976-07-06
CA1051880A (en) 1979-04-03
FI62542C (en) 1983-01-10
BE831238A (en) 1976-01-12
NL7508261A (en) 1976-01-13
NO752460L (en) 1976-01-13

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