US 11,993,061 B2
Multilayer composite material containing special polycarbonate compositions as a matrix material
Rolf Wehrmann, Krefeld (DE); Anke Boumans, Goch (DE); Helmut Werner Heuer, Siegen (DE); Thomas Grimm, Cologne (DE); Matthias Knaupp, langenfeld (DE); and John Bauer, Kitzingen (DE)
Assigned to Covestro Deutschland AG, Leverkusen (DE)
Filed by COVESTRO DEUTSCHLAND AG, Leverkusen (DE)
Filed on Nov. 30, 2021, as Appl. No. 17/538,218.
Application 17/538,218 is a division of application No. 16/314,772, abandoned, previously published as PCT/EP2017/066527, filed on Jul. 3, 2017.
Claims priority of application No. 16177707 (EP), filed on Jul. 4, 2016.
Prior Publication US 2022/0088906 A1, Mar. 24, 2022
Int. Cl. B32B 27/12 (2006.01); B05D 3/02 (2006.01); B29C 65/02 (2006.01); B29C 65/44 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 21/08 (2006.01); B32B 21/10 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B32B 27/42 (2006.01); C08J 5/04 (2006.01); C08J 5/10 (2006.01); C08K 3/34 (2006.01); C08K 5/00 (2006.01); C08K 5/52 (2006.01); C08K 5/521 (2006.01); C08K 5/5399 (2006.01); C08K 7/04 (2006.01); C08L 69/00 (2006.01); B29C 65/00 (2006.01); B32B 37/06 (2006.01); B32B 38/00 (2006.01)
CPC B32B 27/12 (2013.01) [B05D 3/0218 (2013.01); B29C 65/02 (2013.01); B29C 65/44 (2013.01); B32B 5/024 (2013.01); B32B 5/026 (2013.01); B32B 5/26 (2013.01); B32B 21/08 (2013.01); B32B 21/10 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/28 (2013.01); B32B 27/281 (2013.01); B32B 27/285 (2013.01); B32B 27/288 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); B32B 27/42 (2013.01); C08J 5/04 (2013.01); C08J 5/10 (2013.01); C08K 3/34 (2013.01); C08K 5/0066 (2013.01); C08K 5/52 (2013.01); C08K 5/521 (2013.01); C08K 5/5399 (2013.01); C08K 7/04 (2013.01); C08L 69/00 (2013.01); B29C 65/022 (2013.01); B29C 66/71 (2013.01); B32B 37/06 (2013.01); B32B 2038/0072 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/02 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/103 (2013.01); B32B 2262/106 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/71 (2013.01); B32B 2307/732 (2013.01); B32B 2307/738 (2013.01); B32B 2457/00 (2013.01); C08J 2369/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A process for producing a layer of fibre composite material, wherein a molten, aromatic polycarbonate-based composition comprising
A) aromatic polycarbonate,
B) 1% by weight to 14% by weight of talc,
C) 7% by weight to 15% by weight of at least one cyclic phosphazene of formula (1)

OG Complex Work Unit Chemistry
where
R is the same or different and is an amine radical, an in each case optionally halogenated C1- to C8-alkyl radical, C1- to C8-alkoxy radical, in each case optionally alkyl- and/or halogen-substituted C5- to C6-cycloalkyl radical, in each case optionally alkyl- and/or halogen- and/or hydroxyl-substituted C6- to C20-aryloxy radical, in each case optionally alkyl- and/or halogen-substituted C7- to C12-aralkyl radical or a halogen radical or an OH radical,
k is an integer from 1 to 10,
D) 0% to 11% by weight of at least one phosphorus compound of general formula (V)

OG Complex Work Unit Chemistry
where
R1, R2, R3 and R4 are each independently a C1- to C8-alkyl radical, in each case optionally halogenated and in each case branched or unbranched, and/or C5- to C6-cycloalkyl radical, C6- to C20-aryl radical or C7- to C12-aralkyl radical, in each case optionally substituted by branched or unbranched alkyl and/or halogen,
n is independently 0 or 1,
q is an integer from 0 to 30,
X is a mono- or polycyclic aromatic radical having 6 to 30 carbon atoms or a linear or branched aliphatic radical having 2 to 30 carbon atoms, each of which may be substituted or unsubstituted, and bridged or unbridged;
E) 0% to 0.2% by weight of at least one stabilizer selected from a group consisting of alkyl phosphate, ethylenediaminetetraacetic acid and citric acid,
wherein the composition is free of PTFE,
is applied to a raw fibre tape composed of fibre material that has been preheated to above the glass transition temperature of the polycarbonate.