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Class 536/79 - Corrosiveness reduced


Subclass of Class 536 - Organic compounds -- part of the class 532-570 series
Definition: Processes which result in the inhibition or reduction of
No. of patents: 6
Last issue date: 03/15/1994


NumberTitleIssue Date
5294703Process for preparing ଱-D-cellobiose octaacetate
Provided is a novel improved process for the preparation of ଱-D-cellobiose octaacetate via the acetylative degradation of cellulose or cellulose acetate. The title compound is provided in high yield and quality in a facile one-pot process, amenable ...
03/15/1994
5142034Cellulose ester compositions and process for the preparation thereof
Process for reducing the degree of substitution of cellulose esters employing Lewis acids as solvolysis promoters is disclosed. Novel low degree of substitution cellulose esters produced by the invention process are also described....
08/25/1992
4524193Modacrylic synthetic fiber having an excellent devitrification preventing property and a process for preparing the same
A modacrylic fiber comprising a copolymer containing acrylonitrile, at least one of vinyl chloride and vinylidene chloride, and a sulfo group-containing vinyl monomer having a relative reactivity of at least 1 to acrylonitrile, in a specific ratio. The co...
06/18/1985
4499043Process for producing a cellulose ester support
A process for producing a cellulose ester support is described which comprises producing said support from an organic solvent solution of a cellulose ester containing 30 ppm or less alkaline earth metal....
02/12/1985
4461892Process for preparing porous spherical cellulose particles
A process for preparing porous, spherical cellulose particles which comprises suspending a cellulose organic ester solution dissolved in a chlorinated hydrocarbon solvent into an aqueous medium to form droplets of the solution, evaporating the chlorinated...
07/24/1984
4390691Process for preparing porous spherical cellulose particles
A process for preparing porous, spherical cellulose particles which comprises suspending a cellulose organic ester solution dissolved in a chlorinated hydrocarbon solvent into an aqueous medium to form droplets of the solution, evaporating the chlorinated...
06/28/1983
 
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