SHAPABLE FIBER-REINFORCED NOVACULITE-FILLED LOW MOLECULAR WEIGHT POLYETHYLENE TEREPHTHALATE

    公开(公告)号:CA991335A

    公开(公告)日:1976-06-15

    申请号:CA152228

    申请日:1972-09-21

    Applicant: ALLIED CHEM

    Inventor: SEGAL LEON

    Abstract: 1373439 Laminates ALLIED CHEMICAL CORP 22 Sept 1972 [22 Sept 1971] 43960/72 Heading B5N [Also in Division C3] Laminates are prepared by (a) distributing powdered novaculite (a form of quartz), filled polyethylene terephthalate between seven layers of non-woven glass mats and fusing the assembly, (b) introducing a glass mat or loose glass fibre between two layers of novaculite filled polyester and passing the assembly through rollers, or (c) placing a sheet formed from polyester and novaculite between a number of alternating polyester sheet glass fibre layers and fusing the assembly. Graphite fibres may be used in place of the glass fibres.

    SHAPABLE, FILLED POLYAMIDE COMPOSITES AND METHOD OF FORMING

    公开(公告)号:CA1015121A

    公开(公告)日:1977-08-09

    申请号:CA155238

    申请日:1972-10-31

    Applicant: ALLIED CHEM

    Abstract: The fibre-reinforced thermoplastic sheets consist of an amide polymer, or copolymer contg. >=30% amide, with ave. mol. wt. of 3,000-25,000, in which 10-75% glass fibre of length 3.75 cm. min., are embedded. The polymer is pref. nylon-6 or nylon-6,6, or copolymers contg. >=50% of these. The compsns. may also contain 1-50% of sheet fibre or non-fibrous fillers. The sheets are suitable, when heated to a temp. between their softening pt. and 280 degrees C, for shaping in moulds at ambient temp., is not >10 degrees C above the Tg of the polymer. Owing to the low viscosity and surface tension, and good wetting props. of the polymer, combined with use of long fibres, prodts. of high impact and bend strength, and increased heat deformation temps. are obtained.

    POLYETHYLENE TEREPHTHALATE INJECTION MOLDING COMPOUND

    公开(公告)号:CA991336A

    公开(公告)日:1976-06-15

    申请号:CA157414

    申请日:1972-11-24

    Applicant: ALLIED CHEM

    Inventor: SEGAL LEON

    Abstract: 1403205 Novaculite filled polyesters ALLIED CHEMICAL CORP 27 Nov 1972 [26 Nov 1971] 54699/72 Heading C3R A reinforced synthetic resinous composition comprises (a) 20 to 95% by weight of at least one linear semicrystalline polyester having a weight average molecular weight of 15,000 to 90,000; (b) 5 to 80% by weight of novaculite having a maximum particle size of about 40 microns and optionally (c) 5 to 50% by weight of glass fibres. The term "polyester" covers both polyesters and copolyesters containing less than 30% of a modifying constituent, e.g. a second acid, a second diol or both. Polyethylene terephthalate is nevertheless the preferred polyester. The semicrystalline polyesters normally have an intrinsic viscosity at 30‹ C. of 0À28 to 0À97 as measured in 1À1 tetrachlorethane/phenol.

    FIBROUS DISPERSION AID FOR THERMOPLASTICS

    公开(公告)号:CA1104282A

    公开(公告)日:1981-06-30

    申请号:CA239751

    申请日:1975-11-17

    Applicant: ALLIED CHEM

    Abstract: The addition to filled thermoplastic resin systems of small amounts of fibrous material, of aspect ratio at least about 10 times the aspect ration of the filler, facilitates dispersion and processing of these filled compositions into shaped articles and gives a product exhibiting superior surface properties.

    Fibrous dispersion aid in filled thermoplastic compsns. - improves filler dispersion and processing

    公开(公告)号:FR2331586A1

    公开(公告)日:1977-06-10

    申请号:FR7535031

    申请日:1975-11-17

    Applicant: ALLIED CHEM

    Abstract: Processability of highly filled thermoplastic compsns. formable under heat and pressure and contg. 25-50 wt. % filler (I) is improved by combining the polymer, filler and a dispersion material (II) comprising 0.5-15% fibrous material having an aspect ratio >=10 times that of filler, the (I) being of sufficient length before blending such that its length after blending is 1/8 inch; and intimately blending mixt. Addn. of (II) markedly facilitates dispersion of (I) in compsns., removes difficulties associated with additional melt processing, facilitates handling and feeding of the 'dry blend' in hoppers, conveyors, etc., prevents bridging in hopper and cuases less strain on conventional mixing/extruding equipment. The process enables prodn. of superior quality reinforced filled thermoplastic compsns.

    Fibrous dispersion aid in filled thermoplastic compsns. - improves filler dispersion and processing

    公开(公告)号:DE2552412A1

    公开(公告)日:1977-05-26

    申请号:DE2552412

    申请日:1975-11-22

    Applicant: ALLIED CHEM

    Abstract: Processability of highly filled thermoplastic compsns. formable under heat and pressure and contg. 25-50 wt. % filler (I) is improved by combining the polymer, filler and a dispersion material (II) comprising 0.5-15% fibrous material having an aspect ratio >=10 times that of filler, the (I) being of sufficient length before blending such that its length after blending is 1/8 inch; and intimately blending mixt. Addn. of (II) markedly facilitates dispersion of (I) in compsns., removes difficulties associated with additional melt processing, facilitates handling and feeding of the 'dry blend' in hoppers, conveyors, etc., prevents bridging in hopper and cuases less strain on conventional mixing/extruding equipment. The process enables prodn. of superior quality reinforced filled thermoplastic compsns.

    10.
    发明专利
    未知

    公开(公告)号:DE2246228A1

    公开(公告)日:1973-03-29

    申请号:DE2246228

    申请日:1972-09-21

    Applicant: ALLIED CHEM

    Inventor: SEGAL LEON

    Abstract: 1373439 Laminates ALLIED CHEMICAL CORP 22 Sept 1972 [22 Sept 1971] 43960/72 Heading B5N [Also in Division C3] Laminates are prepared by (a) distributing powdered novaculite (a form of quartz), filled polyethylene terephthalate between seven layers of non-woven glass mats and fusing the assembly, (b) introducing a glass mat or loose glass fibre between two layers of novaculite filled polyester and passing the assembly through rollers, or (c) placing a sheet formed from polyester and novaculite between a number of alternating polyester sheet glass fibre layers and fusing the assembly. Graphite fibres may be used in place of the glass fibres.

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