An object of this invention is to find a method for introducing a functional group into an aliphatic polycarbonate without impairing the excellent thermal decomposition property of the aliphatic polycarbonate.

An aliphatic polycarbonate comprising a constituent unit represented by formula (1):

##STR00001##

wherein R.sup.1, R.sup.2, and R.sup.3 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.1 to R.sup.3, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring; and X represents a divalent group containing one or more heteroatoms or an alkylene group having 3 or more carbon atoms, and a constituent unit represented by formula (2):

##STR00002##

wherein R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.4 to R.sup.7, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring, the content of the constituent unit represented by formula (1) being 0.1 mol % or more and 1.5 mol % or less, based on the total amount of the constituent units of formula (1) and formula (2).

An object of this invention is to find a method for introducing a functional group into an aliphatic polycarbonate without impairing the excellent thermal decomposition property of the aliphatic polycarbonate.

An aliphatic polycarbonate comprising a constituent unit represented by formula (1):

##STR00001##

wherein R.sup.1, R.sup.2, and R.sup.3 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.1 to R.sup.3, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring; and X represents a divalent group containing one or more heteroatoms or an alkylene group having 3 or more carbon atoms, and a constituent unit represented by formula (2):

##STR00002##

wherein R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.4 to R.sup.7, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring, the content of the constituent unit represented by formula (1) being 0.1 mol % or more and 1.5 mol % or less, based on the total amount of the constituent units of formula (1) and formula (2).

An article includes at least two contiguous layers containing a composition that includes a branched polycarbonate, optionally a linear carbonate-containing polymer, and 0 to less than 5 weight percent filler. The composition is characterized by an average mole percent branching of 0.06 to 2.4 mole percent, which is calculated as 100 times moles of branched carbonate units in the branched polycarbonate divided by the sum of moles of linear carbonate units in the branched polycarbonate and the optional linear carbonate-containing polymer. The composition is further characterized by a melt flow rate of 1 to 20 grams per 10 minutes, determined according to ASTM D1238-13 at 300° C. and 1.2 kilogram load. Also described is a method of additive manufacturing utilizing the composition.

An article includes at least two contiguous layers containing a composition that includes a branched polycarbonate, optionally a linear carbonate-containing polymer, and 0 to less than 5 weight percent filler. The composition is characterized by an average mole percent branching of 0.06 to 2.4 mole percent, which is calculated as 100 times moles of branched carbonate units in the branched polycarbonate divided by the sum of moles of linear carbonate units in the branched polycarbonate and the optional linear carbonate-containing polymer. The composition is further characterized by a melt flow rate of 1 to 20 grams per 10 minutes, determined according to ASTM D1238-13 at 300° C. and 1.2 kilogram load. Also described is a method of additive manufacturing utilizing the composition.

A fluorine-containing resin particle contains 0 or more and 30 or less carboxyl groups per 10.sup.6 carbon atoms and 0 ppm or more and 3 ppm or less of a basic compound.

A fluorine-containing resin particle contains 0 or more and 30 or less carboxyl groups per 10.sup.6 carbon atoms and 0 ppm or more and 3 ppm or less of a basic compound.

The present invention provides a new glitter pigment suitable for providing high-brightness whitish reflected light. The glitter pigment according to the present invention includes: a flaky substrate 1; and a silicon oxide layer 2 and a titanium oxide layer 3 formed in this order on the flaky substrate 1, wherein in the case where the flaky substrate is the glass flake, the glass flake has a thickness of 284 to 322 nm, the silicon oxide layer has a thickness of 89 to 109 nm, and the titanium oxide layer has a thickness of 51 to 86 nm. In the case where the flaky substrate is the alumina flake, the alumina flake has a thickness of 260 to 280 nm, the silicon oxide layer has a thickness of 79 to 102 nm, and the titanium oxide layer has a thickness of 47 to 87 nm.

The present invention provides a new glitter pigment suitable for providing high-brightness whitish reflected light. The glitter pigment according to the present invention includes: a flaky substrate 1; and a silicon oxide layer 2 and a titanium oxide layer 3 formed in this order on the flaky substrate 1, wherein in the case where the flaky substrate is the glass flake, the glass flake has a thickness of 284 to 322 nm, the silicon oxide layer has a thickness of 89 to 109 nm, and the titanium oxide layer has a thickness of 51 to 86 nm. In the case where the flaky substrate is the alumina flake, the alumina flake has a thickness of 260 to 280 nm, the silicon oxide layer has a thickness of 79 to 102 nm, and the titanium oxide layer has a thickness of 47 to 87 nm.

An electrically conductive multilayer film is disclosed. The electrically conductive multilayer film may comprise a non-conductive base layer, a transparent layer comprising transparent conductor material, and a transparent primer layer. The non-conductive base layer, the transparent layer comprising transparent conductor material, and the transparent primer layer are arranged one on the other in a vertical direction such that the transparent primer layer is situated between the non-conductive base layer and the transparent layer comprising transparent conductor material and is in direct contact with the transparent layer comprising transparent conductor material. The transparent primer layer is formed of a composition comprising a polymer, wherein the polymer is selected from a group consisting of polyvinylidene chloride, a copolymer, wherein one of the monomers is vinylidene chloride, and any combination thereof. Further is disclosed a method, a touch sensing device, and different uses.

An electrically conductive multilayer film is disclosed. The electrically conductive multilayer film may comprise a non-conductive base layer, a transparent layer comprising transparent conductor material, and a transparent primer layer. The non-conductive base layer, the transparent layer comprising transparent conductor material, and the transparent primer layer are arranged one on the other in a vertical direction such that the transparent primer layer is situated between the non-conductive base layer and the transparent layer comprising transparent conductor material and is in direct contact with the transparent layer comprising transparent conductor material. The transparent primer layer is formed of a composition comprising a polymer, wherein the polymer is selected from a group consisting of polyvinylidene chloride, a copolymer, wherein one of the monomers is vinylidene chloride, and any combination thereof. Further is disclosed a method, a touch sensing device, and different uses.