A sheet for thermal bonding which has a tensile modulus of 10 to 3,000 MPa and contains fine metal particles in an amount in the range of 60-98 wt % and which, when heated from 23° C. to 400° C. in the air at a heating rate of 10° C./min and then examined by energy dispersive X-ray spectrometry, has a carbon concentration of 15 wt % or less.

The present application is directed to a method for preparing a cyclic carbonate functional polyester, said method comprising the stages of (A) reacting glycerine carbonate with an anhydride to form an Adduct (A), (B) reacting said Adduct (A) with at least one polyepoxide compound to form an Adduct (B), and (C) reacting said Adduct (B) with at least one polycarboxylic acid to form said cyclic carbonate functional polyester.

A sheet for thermal bonding which has a tensile modulus of 10 to 3,000 MPa and contains fine metal particles in an amount in the range of 60-98 wt % and which, when heated from 23 C. to 400 C. in the air at a heating rate of 10 C./min and then examined by energy dispersive X-ray spectrometry, has a carbon concentration of 15 wt % or less.

The invention relates to a multilayer structure (MS) comprising (SI) at least one first polymer layer (SI) comprising ?95% by weight, preferably ?98% by weight, particularly preferably ?99% by weight, based on the total weight of the polymer layer (SI), of a polymer (PI) selected from the group consisting of a polycarbonate, a co-polycarbonate or mixtures thereof having a Vicat softening temperature?149? C., preferably ?160? C., Further preferably ?170? C.; more preferably ?180? C., determined according to ISO 360:2004 (50N; 50? /h); (S2) at least one further polymer layer (S2) having a Vicat softening temperature<149? C., preferably ?140? C., more preferably ?130? C., determined according to ISO 306:2004 (50N; 50? /h), preferably in a range from 120? C. to 148? C.; (S3) optionally at least one third polymer layer (S3) having a Vicat softening temperature ?149? C., preferably ?160? C., further preferably ?170? C.; more preferably ?180? C., determined according to ISO 306:2004 (50N; 50? h). The invention further relates to a process for producing a multilayer structure (MS) and to a security document comprising such a multilayer structure according to the invention.

The present application is directed to a method for preparing a cyclic carbonate functional polyester, said method comprising the stages of (A) reacting glycerine carbonate with an anhydride to form an Adduct (A), (B) reacting said Adduct (A) with at least one polyepoxide compound to form an Adduct (B), and (C) reacting said Adduct (B) with at least one polycarboxylic acid to form said cyclic carbonate functional polyester.

A surface sealant or jointing material composition contains at least 20 wt. % of a silane-terminated polymer, the polymer backbone of which is selected from a polycarbonate, a polyester, a copolymer containing a polyester and/or a polycarbonate and a polymer containing at least one ester group and/or carbonate group. This backbone contains a plurality of diol monomer at least 60% of which contain a diol of formula HOZOH, wherein Z is a saturated or unsaturated hydrocarbon chain optionally containing one or more heteroatoms selected from oxygen, sulfur and a tertiary nitrogen, Z includes at least one side chain and/or at least one cyclic ring system and/or at least one double bond and the composition is free from hardening catalysts or residues thereof selected from base catalysts having a pKa value greater than 15 and from by-products that may arise by cleaving of a leaving group with silane termination of the polymer.