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Flame-retardant cellulose ester preparations

A technology of cellulose ester and cellulose, applied in the field of cellulose ester preparation, can solve the problems of flame-retardant plasticizers, such as unfavorable human beings and the environment

Inactive Publication Date: 2016-09-14
LANXESS DEUTDCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another disadvantage of using flame retardant plasticizers known from the prior art is considered their potential adverse effects on humans and the environment

Method used

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  • Flame-retardant cellulose ester preparations
  • Flame-retardant cellulose ester preparations
  • Flame-retardant cellulose ester preparations

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[0069] Parts hereinafter are by weight.

[0070] Preparation of phosphopropionates of formula (I) wherein X=O, R=H, A=O, Z=n-butyl and n=1

[0071] n-Butyl 6-oxo-6H-dibenzo[c,e][1,2]oxaphosphazene-6-propionate was prepared according to Organic Letters (Organic Letters) 2005, Vol. 7, No. 5 period, Supplementary Information S8 prepared by reacting 6H-dibenzo[c,e][1,2]oxaphosphapine 6-oxide with n-butyl acrylate to obtain a colorless A liquid having a viscosity of 6500 mPas at 23°C.

[0072] Production of cellulose ester formulations

[0073] Table 1: Raw materials for the production of cellulose ester preparations

[0074]

[0075] Production of solutions of cellulose ester formulations

[0076] Solvents, flame retardants and antioxidants were initially charged in glass flasks in the quantitative ratios reported in Table 2 according to Table 1 . The amount of cellulose acetate powder reported in Table 2 was added with constant agitation as the glass flask was gently ...

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Abstract

The invention relates to flame retardant cellulose ester preparations which include phosphorus-containing propionic acid derivatives as flame-retardant plasticizers.

Description

technical field [0001] The present invention relates to cellulose ester formulations comprising phosphopropionic acid derivatives as flame retardant plasticizers. Background technique [0002] Esters of cellulose and short-chain aliphatic carboxylic acids have long been used industrially as engineering / engineering materials. Typical examples of these cellulose esters are cellulose acetate, cellulose propionate, cellulose butyrate and also mixed esters such as cellulose acetate propionate or cellulose acetate butyrate. Their manufacture and processing methods are e.g. from K. Balser, L. Hoppe, T. Eicher, M. Wandel, H.-J. Astheimer and H. Steinmeier: "Cellulose Esters", Ullmann Chemical Encyclopedia Complete Book, Published 2005, Electronic Release, 7th Edition, Chapter 2 ("Organic Esters") (Ullmann's Encyclopedia of Industrial Chemistry Release 2005, Electronic Release, 7thed., chap. 2 ("Organic Esters")), Wiley -VCH, Weinheim 2005 is known. [0003] Cellulose esters can b...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/12C08K5/5313
CPCC08K5/5313C08L2201/22C08L2201/02C08L1/12C07F9/657172C08K5/0066C08K5/101C09K21/12C08K5/5398C08L1/10C07F9/657163
Inventor 海科·特比扬-格尔德·汉塞尔奥托·毛厄尔
Owner LANXESS DEUTDCHLAND GMBH
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