Abstract: A heat transfer recording sheet comprising(A) a substrate film, and(B) formed on at least one surface of the substrate film, a film of an acrylic resin having recurring units represented by the following formula (1) ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group,R.sup.2 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms,R.sup.3 and R.sup.4 are identical or different and each represents an alkyl or hydroxyalkyl group having 1 to 5 carbon atoms,X represents a halogen atom, andl is 2, 3 or 4.

Abstract: A novel polyester composition which can give shaped articles being free from warping and having superior mechanical and thermal properties. The polyester composition comprises (A) 100 parts by weight of an aromatic polyester, (B) 5 to 150 parts by weight of flat glass flakes, and based on the total weight of (A) and (B), (C) 0.01 to 10% by weight of an epoxy compound containing two epoxy groups, and optionally (D) 0.01 to 5% by weight of a phosphorus compound and/or (E) 0.5 to 50% by weight of a rubbery elastomer selected from the group consisting of copolymers containing 30 to 90% of an acrylic ester as a constituent monomer and poly(ether.ester) elastomers. Up to half of the flat glass flakes may be replaced by a powdery inorganic solid such as feldspar.

Abstract: A process for preparing a polyester by carrying out the ester-interchange reaction of a lower alkyl ester of terephthalic acid and a glycol in the presence of a calcium compound and a lithium compound having ester-interchange catalysis capacities in amounts satisfying all of the following relationships:0.03.ltoreq.Ca.ltoreq.0.50 1.0.10=Li.ltoreq.0.80 2.0.30.ltoreq.0.5 Ca + Li.ltoreq.1.00 3.