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US 2010/0168295 A1Published application
Polycarbonate Flame Retardant Compositions
OwnerChristine Breiner, Michael Tinkl +2inventors
InventorsChristine Breiner, Michael Tinkl, Fabien Jean Brand, Simon Kniesel
Life of this patent
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Abstract
The invention relates to a flame retardant composition, wherein a combination of selected flame retardants, particularly potassium perfluorobutane sulphonate, with fluorocarbon or siloxane terminated polycarbonates is present in a polycarbonate substrate. The combination improves the light transparency of polycarbonates.
Claims22
A composition, which comprises
- a) At least one salt of an acid selected from the group consisting of aromatic carboxylic acids, aromatic sulphonic acids, perfluoroalkanesulphonic acids, phosphorus containing oxo acids, NH-acidic sulphonamides, NH-acidic sulphonimides and complex fluoro acids;
- b1) At least one compound of the formula (I)
- Wherein
- R1 and R2 independently of one another represent an aliphatic group substituted by fluorine;
- X1 and X2 independently of one another represent a direct bond or C1-C12alkylene;
- m represents a numeral from 1 to 10 000;
- R5, R6, R7 and R8 independently of one another represent hydrogen, C1-C12alkyl or C3-C12alkenyl;
- and
- Y represents a direct bond or a bivalent group selected from the group consisting of
- Wherein
- Both Ra and Rb represent hydrogen or halogen;
- or
- One of Ra and Rb represents hydrogen and the other one represents halogen;
- R3 and R4, together with the carbon atom to which they are bonded, form a C5-C8-cycloalkylidene group with 1 to 3 C1-C4alkyl groups as optional substituents;
- or
- R3 and R4 independently of one another represent hydrogen, an aliphatic group substituted by fluorine, C1-C12alkyl, C1-C12alkyl substituted by carboxy, C2-C12alkenyl, aryl, or the group of the partial formula (A)
- Wherein
- n represents a numeral from 0-10 000;
- and
- X2, Y, R2, R5, R6, R7 and R8 are as defined above;
- and
- c) A polymer substrate comprising polycarbonates or polycarbonate blends.
19 more elements
A composition which comprises
- a) At least one salt of an acid selected from the group consisting of aromatic carboxylic acids, aromatic sulphonic acids, perfluoroalkanesulphonic acids, phosphorus containing oxo acids, NH-acidic sulphonamides, NH-acidic sulphonimides and complex fluoro acids;
- b2) At least one compound of the formula (II)
- Wherein
- R0 represents a direct bond or a bivalent group selected from the group consisting of
- R1 and R2 independently of one another represent a silicon containing group;
- R3 and R4 independently of one another represent hydrogen, an aliphatic group substituted by fluorine, a silicon containing group, C1-C12alkyl, C1-C12alkyl substituted by carboxy, C2-C12alkenyl, aryl, or a group of the partial formula (B)
- or R3 and R4, together with the carbon atom to which they are bonded represent C5-C8-cycloalkylidene or C5-C8-cycloalkylidene that is substituted by from 1 to 3 C1-C4alkyl groups;
- R5, R6, R7 and R8 independently of one another represent hydrogen, C1-C12alkyl or C3-C12alkenyl;
- X1 and X2 independently of one another represent a direct bond, C1-C12alkylene or C4-C25alkylene interrupted by —O—;
- Y1 and Y2 independently of one another represent a direct bond or a bivalent group selected from the group consisting of
- R9 and R10 independently of one another represent atha direct bond or C1-C4alkylene;
- R11, R12 and R13 independently of one another represent hydrogen, C1-C12alkyl or C3-C12alkenyl;
- R14 represents hydrogen, C1-C12alkyl or a silicon containing group,
- m represents a numeral from 0 to 10 000;
- and
- n represents a numeral from 0 to 10 000;
- and
- c) A polymer substrate comprising polycarbonates or polycarbonate blends.
15 more elements
Dependencies are inferred from the claim text.