Pure fibrous polyoxymethylenes from - trioxane

    公开(公告)号:DE1962126A1

    公开(公告)日:1971-06-24

    申请号:DE1962126

    申请日:1969-12-11

    Applicant: DEGUSSA

    Abstract: Fully fibrous, virtually powder-free polyoxymethylene, suitable as filler or thickener for synthetic or natural resins, paints, textiles, filter media, etc. or as insulating material (electrical, sound possibly in conjunction with other fillers) is obtained by polymerising finely divided (0.01-3 mm) crystalline trioxane in the presence of 0.01-1% of (pref. powdered) AlCl3 or TiCl4 for about 4 hr. at 50-80 degrees and purifying the product by washing with water or alcohols.

    A process for the production of fibrous polyoxymethylene

    公开(公告)号:GB1134364A

    公开(公告)日:1968-11-20

    申请号:GB4042967

    申请日:1967-09-05

    Applicant: DEGUSSA

    Abstract: 1,134,364. Fibrous polyoxymethylene from trioxan. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT. 5 Sept., 1967 [5 Sept., 1966], No. 40429/67. Heading C3P. Fibrous polyoxymethylene is obtained by forming an intimate mixture, e.g. by spraying or shaking of crystalline finely divided trioxan with AlCl 3 and/or TiCl 4 as initiator and heating the mixture, e.g. at 45‹ to 80‹ C. for 1 to 5 hours, and separating the polymer thus obtained from any residual monomer.

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