GB1098931A - Cationic natural and synthetic polymeric products and process for preparation under acid conditions - Google Patents

Cationic natural and synthetic polymeric products and process for preparation under acid conditions

Info

Publication number
GB1098931A
GB1098931A GB12276/65A GB1227665A GB1098931A GB 1098931 A GB1098931 A GB 1098931A GB 12276/65 A GB12276/65 A GB 12276/65A GB 1227665 A GB1227665 A GB 1227665A GB 1098931 A GB1098931 A GB 1098931A
Authority
GB
United Kingdom
Prior art keywords
acid
cyanamide
salt
sufficient
equivalent
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
GB12276/65A
Inventor
Michael Niall O'connor
David Randal Sexsmith
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to GB12276/65A priority Critical patent/GB1098931A/en
Publication of GB1098931A publication Critical patent/GB1098931A/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
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
    • C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts

Abstract

Cationic nitrogen-containing polymers are obtained by reacting a polyhydric polymer or a proteinaceous material with cyanamide or a salt thereof in an aqueous acid medium containing sufficient acid to provide at least one equivalent of acid for each equivalent of cyanamide and including, when a cyanamide salt is used, sufficient acid to neutralize the salt and an amount of water sufficient to swell the polymer or protein but not exceeding the amount required to dissolve it. The protein may be corn, wheat or soya flour or gluten or casein from milk or cheese. The polyhydric polymer can be polyvinyl alcohol or a cellulose or another polysaccharide, corn starch being exemplified. The weight ratio of polymer to cyanamide may be 0.5-10:1. The acid may be added in the form of an acid salt of cyanamide and sufficient to give a pH less than 1. In some examples glacial acetic acid is added as diluent.ALSO:Cationic nitrogen-containing polymers are obtained by reacting lignin with cyanamide or a salt thereof in an aqueous acid medium containing sufficient acid to provide at least one equivalent of acid for each equivalent of cyanamide and including, when a cyanamide salt is used, sufficient acid to neutralize the salt and an amount of water sufficient to swell the lignin but not exceeding the amount required to dissolve it. The weight ratio of lignin to cyanamide may be 0.5-10:1. The acid may be added in the form of an acid salt of cyanamide and sufficient to give a pH less than 1. In some examples, glacial acetic acid is added as diluent.
GB12276/65A 1965-03-23 1965-03-23 Cationic natural and synthetic polymeric products and process for preparation under acid conditions Expired GB1098931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12276/65A GB1098931A (en) 1965-03-23 1965-03-23 Cationic natural and synthetic polymeric products and process for preparation under acid conditions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12276/65A GB1098931A (en) 1965-03-23 1965-03-23 Cationic natural and synthetic polymeric products and process for preparation under acid conditions

Publications (1)

Publication Number Publication Date
GB1098931A true GB1098931A (en) 1968-01-10

Family

ID=10001584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12276/65A Expired GB1098931A (en) 1965-03-23 1965-03-23 Cationic natural and synthetic polymeric products and process for preparation under acid conditions

Country Status (1)

Country Link
GB (1) GB1098931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7252735B2 (en) 2002-05-13 2007-08-07 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
CN112279370A (en) * 2020-10-13 2021-01-29 神美科技有限公司 Preparation method of denitrification carbon source for sewage treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7252735B2 (en) 2002-05-13 2007-08-07 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US7785440B2 (en) 2002-05-13 2010-08-31 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US8268102B2 (en) 2002-05-13 2012-09-18 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
CN112279370A (en) * 2020-10-13 2021-01-29 神美科技有限公司 Preparation method of denitrification carbon source for sewage treatment

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