GB830102A - Improvements in or relating to the preparation of polyureas - Google Patents

Improvements in or relating to the preparation of polyureas

Info

Publication number
GB830102A
GB830102A GB7703/58A GB770358A GB830102A GB 830102 A GB830102 A GB 830102A GB 7703/58 A GB7703/58 A GB 7703/58A GB 770358 A GB770358 A GB 770358A GB 830102 A GB830102 A GB 830102A
Authority
GB
United Kingdom
Prior art keywords
solution
polyureas
examples
anhydrous tetrahydrofuran
dimethyl
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
GB7703/58A
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.)
Beiersdorf AG
Original Assignee
Beiersdorf AG
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 Beiersdorf AG filed Critical Beiersdorf AG
Publication of GB830102A publication Critical patent/GB830102A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/02—Polyureas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

Polyureas are made by condensing aromatic or aliphatic-aromatic diamines with N : N1-carbonyl di-imidazole. In the examples N : N1-carbonyl di-imidazole is reacted with: (I) 4 : 41-diamino-diphenyl-2 : 2-propane in solution in anhydrous tetrahydrofuran; (II) 4 : 41-diamino-2 : 21-dimethyldiphenyl-methane in solution in anhydrous tetrahydrofuran; (III) 2 : 21-dimethyl-benzidine (4,41) in solution in anhydrous tetrahydrofuran; and (IV) and (V) 2 : 6-dimethyl benzidine in solution in dimethyl formamide. The products of Examples (I) and (III) may be fabricated into fibres, films and coatings as may the products of Examples (II), (IV) and (V), which are soluble in dimethyl formamide.
GB7703/58A 1957-03-14 1958-03-10 Improvements in or relating to the preparation of polyureas Expired GB830102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1202919X 1957-03-14

Publications (1)

Publication Number Publication Date
GB830102A true GB830102A (en) 1960-03-09

Family

ID=7732436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7703/58A Expired GB830102A (en) 1957-03-14 1958-03-10 Improvements in or relating to the preparation of polyureas

Country Status (2)

Country Link
FR (1) FR1202919A (en)
GB (1) GB830102A (en)

Also Published As

Publication number Publication date
FR1202919A (en) 1960-01-14

Similar Documents

Publication Publication Date Title
GB1108190A (en) Novel isocyanate compositions and process
GB830102A (en) Improvements in or relating to the preparation of polyureas
GB858254A (en) Improvements in the production of expanded polyamides
GB1019707A (en) Improvements in or relating to polyamides
GB969772A (en) Toxoids and their production
GB963280A (en) Production of amido or imido-substituted aromatic compounds
GB950550A (en) Process for racemisation of optically active pyroglutamic acid
MASUDA et al. The Vinyl-House Culture of the Tea Plant
CA523788A (en) Process for preparing low molecular weight copolymers of relative homogeneity, copolymers produced thereby and compositions containing the same
GB877403A (en) Improvements in or relating to the production of organic nitrogen compounds
GB899687A (en) Novel polyamides and the manufacture thereof
GB1140906A (en) Moulded nylon-6 articles
GB888424A (en) 6-chloro-gramine and its preparation
ES254884A1 (en) Preparation of 5-aminomethyl-2-furfurylamine
HARIZUKA Study on the non-cocooning larvae ofBombyx moriin relation to rearing conditions
ES252068A1 (en) Process for preparing an +-halogeno- +-lactam
GB946014A (en) Production of dichlorobutadiene
ES260169A1 (en) Improvements in animal feeding stuffs
GB814041A (en) Improvements in the malting process
GB804104A (en) Improvements in or relating to easels
CA505332A (en) Preparation of n,n'-diaryl derivatives of perylene diimid
AU209304B2 (en) Improvements in or relating tothe treatment of textile materials composed wholly or partly of animal fibre to. reduce their tendency to felt
GB1046487A (en) Polyacetyl methylene diamines
肥後純 Studies on the cultivation of Sapling
BE610418A (en) Process for preparing new polypeptides, in particular the heneicosapeptide of formula L-seryl-L-tyrosyl-L-seryl-L-methionyl-L-glutaminyl-L-histidyl-L-phenylalanyl-L-arginyl-L-tryptophyl- glycyl-L-lysyl-L-propyl-L-valyl-glycyl-L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-prolyl-L-valyl-L-lysine.