Patents Assigned to BIP Chemicals Limited
  • Polyamide compositions
    Patent number: 5216063
    Abstract: A polyamide composition which comprises a thermoplastic polyamide red phosphorus and an olefin copolymer. The olefin copolymer is ungrafted and is a copolymer with units from ethylene and an unsaturated ester of a saturated C.sub.1 to C.sub.4 carboxylic acid.The composition can also include a magnesium compound such as magnesium hydroxide or carbonate, and also reinforcing fibers or fillers such as glass fibers.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: June 1, 1993
    Assignee: Bip Chemicals Limited
    Inventor: Richard S. Williams
  • Cellulose fiber filled aminoplast resin compositions for flame retarding polyurethane foams
    Patent number: 5100936
    Abstract: The flame retardance of polyurethane foams is improved by dispersing in a polyol used to make the urethane foam a finely divided resin composition composed of 60-85 wt % of an aminoplast resin filled with 40 to 15 wt % of an aminoplast resin filled with 40 to 15 wt % of cellulose fiber.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 31, 1992
    Assignee: BIP Chemicals Limited
    Inventors: George Inverarity, Geoffrey P. Twiss
  • Plant for the production of alkylated resins
    Patent number: 5075083
    Abstract: In plant for the production of alkylated resins from an alcohol of boiling point greater than 100.degree. C. at atmospheric pressure, comprising an alkylation reactor, a distillation column, a condenser, and a separator, structure is provided to ensure that contact between descending alcohol-rich liquid phase and the vapor stream of alcohol and water ascending from the reactor is confined essentially to the walls of the column.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: December 24, 1991
    Assignee: BIP Chemicals Limited
    Inventors: Keith A. May, Paul A. Freeman
  • Thermoplastic polymer compositions
    Patent number: 4656206
    Abstract: A pigmented thermoplastic polymer masterbatch composition comprises a polyester of melting point above 200.degree. C. based on polyethylene terephthalate, a second polymer to plasticize the polyester, and pigment in an amount of at least 20 parts per 100 parts of composition. The second polymer can be also a toughening agent for the PET and can be a polycarprolactone, or a copolymer of ethylene with acrylic acid or vinyl acetate.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: April 7, 1987
    Assignee: BIP Chemicals Limited
    Inventor: Moira A. Carter
  • Moulding materials
    Patent number: 4623691
    Abstract: An amino-formaldehyde moulding composition is made by compounding togetheran aqueous amino-formaldehyde resin solution to provide 0 to 90 percent by weight of the resin component of the composition, filler to make up 20 to 60 percent by weight of the moulding composition andUF resin which had a low degree of condensation, is solid at room temperature, contains a modifier and makes up 4 to 80 percent by weight of the moulding composition.The moulding compositions themselves are also claimed.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: November 18, 1986
    Assignee: BIP Chemicals Limited
    Inventors: David Taylor, Janet P. Griffiths
  • Urea-formaldehyde resin manufacture
    Patent number: 4564667
    Abstract: A solid urea-formaldehyde resin is provided, having a degree of condensation of 25% to 45%.A process for making the resin is also described and includes several steps. Urea and formaldehyde is first reacted with a molar ratio of U:F of 1:2.5 or more then concentrated. Further urea is added to reduce the ratio to the range 1:1.1 to 1:2 and further concentration is achieved without precipitation of solid resin by the use of a stabilization agent.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: January 14, 1986
    Assignee: BIP Chemicals Limited
    Inventor: David Taylor
  • Filled thermoplastics
    Patent number: 4562215
    Abstract: A filled thermoplastics composition with a filler of particle size below 1 micron in an amount greater than 25 percent by weight also comprises a second filler whose particle size is different from the first but is below 2 microns.The mouldability of the composition is substantially improved by the presence of the second filler.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: December 31, 1985
    Assignee: BIP Chemicals Limited
    Inventors: Moira A. Carter, Kenneth Barrell
  • Polyester moulding compositions
    Patent number: 4540729
    Abstract: A moulding composition comprises a polyethylene terephthalate with a nucleant, polycaprolactone of molecular weight above 10,000 and an epoxidized unsaturated triglyceride. The amount of epoxidized triglyceride is preferably not more than 10 parts per 100 parts total polymer and the amount of polycaprolactone is preferably 2.5 to 25 parts per 100 parts total polymer.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: September 10, 1985
    Assignee: BIP Chemicals Limited
    Inventor: Richard S. Williams
  • Moulding compounds based on polyester
    Patent number: 4492782
    Abstract: A moulding composition is based on polyethylene terephthalate (PET) and contains as additives polycaprolactone with a number average molecular weight greater than 10,000 and a nucleant for crystallization of the PET.The composition can also contain a reinforcing fibre, such as glass, and a plasticizing additive, which may be, for example, a lower molecular weight polycaprolactone, or a plasticizer such as dibenzyl adipate.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: January 8, 1985
    Assignee: BIP Chemicals Limited
    Inventors: Richard S. Williams, Terry Daniels