摘要:
A functionalized flame-retardant aconitic acid-derived molecule, a process for forming a flame-retardant polymer, and an article of manufacture comprising a material that contains a functionalized flame-retardant aconitic acid-derived molecule are disclosed. The functionalized flame-retardant aconitic acid-derived molecule can have at least one phosphoryl or phosphonyl moiety with allyl functional groups, epoxy functional groups, propylene carbonate functional groups, or functionalized thioether substituents. The process for forming the flame-retardant polymer can include reacting an aconitic acid derivative with a flame-retardant phosphorus-based molecule to form a functionalized flame-retardant aconitic acid-derived molecule, and combining the functionalized flame-retardant aconitic acid-derived molecule with a polymer. The material in the article of manufacture can be a resin, plastic, polymer, or adhesive, and the article of manufacture can further comprise an electronic component.
摘要:
A resin composition that can exhibit good heat resistance and/or insulation properties includes (A) a polycarbonate resin, (B) a vinyl-based copolymer, (C) a fluorinated polyolefin and (D) a phosphorus-based flame retardant represented by Chemical Formula 1: wherein, in Chemical Formula 1, R6, R7, R9 and R10 are the same or different and are each independently a C6 to C20 aryl group or C1 to C14 alkyl-substituted C6 to C20 aryl group, R8 is biphenyl, and n is an integer ranging from 1 to 5.
摘要:
Extruded polymer foams are made from a polymer composition that includes an unbrominated styrenic polymer, a brominated vinyl aromatic/butadiene flame retardant, and an unbrominated vinyl aromatic/butadiene polymer. The unbrominated vinyl aromatic/butadiene polymer improves the cell homogeneity.
摘要:
A flame retardant thermoplastic composition comprising in combination a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: wherein R1 and R2 are independently at each occurrence a C1-C4 alkyl, n and p are each an integer having a value of 1 to 4, and T is selected from the group consisting of C5-C10 cycloalkanes attached to the aryl groups at one or two carbons, C1-C5 alkyl groups, C6-C13 aryl groups, and C7-C12 aryl alkyl groups; an impact modifier, wherein the impact modifier comprises wherein the impact modifier comprises a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, and wherein the impact modifier has a specific mean particle size and Q value; and a flame retardant. The compositions have excellent scratch resistance as well as an improved balance of physical properties such as impact strength and spiral flow, while at the same time maintaining their good flame performance.
摘要:
The present invention relates to compositions containing flame retardant polycarbonate, which are suitable for producing flame-resistant milk-white coloured plates.
摘要:
A flame retardant thermoplastic composition comprising in combination a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: wherein R1 and R2 are independently at each occurrence a C1-C4 alkyl, n and p are each an integer having a value of 1 to 4, and T is selected from the group consisting of C5-C10 cycloalkanes attached to the aryl groups at one or two carbons, C1-C5 alkyl groups, C6-C13 aryl groups, and C7-C12 aryl alkyl groups; an impact modifier, wherein the impact modifier comprises wherein the impact modifier comprises a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, and wherein the impact modifier has a specific mean particle size and Q value; and a flame retardant. The compositions have excellent scratch resistance as well as an improved balance of physical properties such as impact strength and spiral flow, while at the same time maintaining their good flame performance.
摘要:
The invention relates to flame-retardant aromatic or semiaromatic copolyamides comprising, as flame retardant, at least one phosphinic salt of the formula (I), and/or one diphosphinic salt of the formula (II), and/or polymers of these, where R1, R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na; K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4.
摘要:
An object of this invention is to impart excellent flame retardancy to an aromatic polyamide resin without use of a halogen compound which is responsible for generation of gases harmful to the human body and without decreasing preferred properties (e.g. mechanical properties, and molding processability) inherently possessed by aromatic polyamide resins, the flame-retardant aromatic polyamide resin composition of this invention comprising (a) 100 parts by weight of an aromatic polyamide resin, (b) 0.1 to 100 parts by weight of a crosslinked phosphazene compound which is a compound crosslinked with a crosslinking group, such as phenylene groups, the crosslinking group being interposed between the two oxygen atoms left after the elimination of phenyl groups from the phosphazene compound, no free hydroxyl group being present in the molecule, the amount of all phenyl groups in the crosslinked compound being 50 to 99.9% based on the total amount of the phenyl groups in the phosphazene compounds, (c) 1 to 60 parts by weight of an inorganic fibrous substance and (d) 1 to 60 parts by weight of magnesium hydroxide.
WHEREIN A AND B ARE MEMBERS SELECTED FROM THE GROUP CONSISTING OF LOWER HYDROXYALKYL, HYDROXYARYL OF 6 TO 12 CARBON ATOMS AND A MOIETY OF FORMULA
(R-O)N-H
WHEREIN R IS LOWER-ALKYLENE OF 2 TO 12 CARBON ATOMS HAVING 2 CARBON ATOMS SEPARATING THE VALENCIES, AND N IS AN INTEGER OF 2 TO 20. THESE COMPOUNDS ARE USEFUL AS FLAME RETARDING COMPONENTS OF POLYMER SYSTEMS SUCH AS POLYURETHANE AND POLYAMIDE FOAM SYSTEMS.