Abstract:
The present invention provides methylene beta-ketoester monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-ketoester monomer. The present invention further compositions and products formed from methylene beta-ketoester monomers of the invention, including monomer-based products ( e.g ., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products ( e.g ., fibers, films, sheets, medical polymers, composite polymers and surfactants).
Abstract:
The present invention provides methylene beta-diketone monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-diketones of the invention, a beta-diketone is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-diketone monomer. The present invention further compositions and products formed from methylene beta-diketone monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
Abstract:
Use of a polymer as a levelling agent or anti-cratering agent, said polymer comprising at least one fluorinated unit represented by formula l,(Formula 1) wherein R?1¿ is a moiety represented by C¿n?F¿2n+l?-(CH¿2?)¿m?-, AC¿n?F¿2n?-(CH¿2?)¿m?-, C¿n?F¿2n+l?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-, AC¿n?F¿2n?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p'? C¿n?F¿2n+1?-(CH¿2?)¿m?-X-, AC¿n?F¿2n?-(CH¿2?)¿m?-X- AC¿n?F¿2n?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-X or C¿n?F¿2n+l?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-X-; wherein A = H, Cl, Br, I, a C¿l-12? alkyl or a OC¿1-12 ?alkyl, wherein 4 ≤ n ≤ 20,0 ≤ m ∼≤ 4 and 0 ≤ p ≤ 20, wherein X is a spacer moiety selected from the group consisting of esters, amides, sulphoamides, mercapto groups, polyurethane groups and alkyl groups, wherein R?2¿ is H, a metal moiety, an (alkyl)ammonium moiety or an alkyl group, C¿n?F¿2n+l?-(CH¿2?)¿m?-, AC¿n?F¿2n?-(CH¿2?)¿m?-, C¿n?F¿2n+1?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-, AC¿n?F¿2n?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p'? C¿n?F¿2n+l?-(CH¿2?)¿m?-X-, AC¿n?F¿2n?-(CH¿2?)¿m?-X-, AC¿n?F¿2n?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-X or C¿n?F¿2n+l?-(CH¿2?)¿m?-(OCH¿2?CHR?5¿)¿p?-X-; wherein A = H, Cl, Br, I, C¿1-12? alkyl or OC 1-12 alkyl, wherein 4 ≤ n ≤ 20, 0 ≤ m ≤ 4 and 0 ≤ p ≤ 20, wherein X is a spacer moiety selected from the group consisting of esters, amides, sulphoamides, mercapto groups, polyurethane groups and alkyl groups, wherein R?3¿ and R?4¿ are independently selected from the group consisting of H, alkyl-groups and phenyl-groups and wherein R?5¿ is H and/or methyl group..
Abstract:
The invention relates to reactive mesogens (RMs) comprising a terphenyl group, to mixtures and formulations comprising them, to polymers obtained form such RMs and RM mixtures, and the use of the RMs, RM mixtures and polymers in optical or electroopticat components or devices, like optical retardation films for liquid crystal displays (LCDs).
Abstract:
본 기재는 중합성 액정 화합물과, 이를 포함하는 중합성 액정 조성물 및 광학 이방체에 관한 것이다. 상기 중합성 액정 화합물은 비방향족 고리를 갖는 메소젠기를 포함한 제 1 액정 분자 유래 라디칼; 상기 비방향족 고리를 갖는 메소젠기와 상이한 구조를 가지며, 이중 결합 함유 고리를 포함한 메소젠기를 갖는 제 2 액정 분자 유래 라디칼; 및 상기 제 1 액정 분자 유래 라디칼의 비방향족 고리 내의 sp3- 혼성화된 탄소와, 상기 제 2 액정 분자 유래 라디칼의 메소젠기 내의 sp2-혼성화된 탄소를 서로 연결하며, 소정의 구조를 갖는 링커를 포함하고, 상기 제 1 및 제 2 액정 분자 유래 라디칼 중 적어도 하나는 상기 메소젠기에 직접적으로 또는 스페이서기를 통해 연결된 하나 이상의 중합성기를 갖는 것일 수 있다. 이러한 중합성 액정 화합물은 단독 또는 다른 액정 화합물과 혼합되어 안정적인 역 파장 분산의 구현을 가능케 한다.
Abstract:
The present invention provides methylene beta-diketone monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-diketones of the invention, a beta-diketone is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-diketone monomer. The present invention further compositions and products formed from methylene beta-diketone monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
Abstract:
A hydroxy ester resin composition such as a vinyl ester resin including the reaction product of (a) divinylarene dioxide resin; and (b) at least one ring opening reactant such as at least one monocarboxylic acid for example (meth)acrylic acid, in the presence of (c) at least one non-gelling catalyst such as a Lewis acid catalyst; a process for making the hydroxy ester resin composition; a curable hydroxy ester resin composition such as a curable resin composition made from the hydroxy ester resin composition; a process for curing the curable hydroxy ester resin composition; and a cured product made from the curable hydroxy ester resin composition. The cured product made from the above hydroxy ester resin composition is thermally stable and offers improved properties such as a lower viscosity and a high heat resistance compared to known cured products prepared from known epoxy resins.
Abstract:
The present invention provides multifunctional monomers, including, but not limited to include multifunctional methylene malonate and methylene beta-ketoester monomers; methods for producing the same; and compositions and products formed therefrom. The multifunctional monomers of the invention may be produced by transesterification or by direct synthesis from monofunctional methylene malonate monomers or methylene beta-ketoester monomers. The present invention further compositions and products formed from methylene beta-ketoester monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).