The invention generally relates to shape memory films that are tri-functionally crosslinked and that comprise multiple, non-terminal, phenylethynyl moieties. In addition, the present invention relates methods of fabricating such films. Due to the improved properties of such SMPS, the SMP designer can program in to the SMP mechanical property enhancements that make the SMP suitable, among other things, for advanced sensors, high temperature actuators, responder matrix materials and heat responsive packaging.

The present invention relates to a resin composition comprising an (A) maleimide compound having a saturated or unsaturated divalent hydrocarbon group, and a thermoplastic resin.

A modified bismaleimide resin, a method for preparing the same, a prepreg, a copper clad laminate, and a printed circuit board are provided. The modified bismaleimide resin is formed by a reaction between a diamine compound having a nonpolar backbone structure and maleic anhydride, and a molecular structure thereof contains a greater amount of non-polar and hydrophobic groups.

A resin composition includes 80 parts by weight to 160 parts by weight of a vinyl-containing resin, 0.1 part by weight to 1.0 part by weight of a first compound and 0.1 part by weight to 2.0 parts by weight of a second compound; wherein the vinyl-containing resin includes a vinyl-containing polyphenylene ether resin, a maleimide resin, a bis(vinylphenyl)ethane, a triallyl isocyanurate, a vinyl-containing polyolefin resin or a combination thereof, the first compound includes a structure of Formula (1) to Formula (3) or a combination thereof, and the second compound includes a structure of Formula (4) to Formula (6) or a combination thereof. Moreover, an article may be made from the resin composition, including a prepreg, a resin film, a laminate or a printed circuit board.

Provided is a curable composition having excellent workability and being capable of forming a cured product having excellent heat resistance. The curable composition of the present invention includes a compound represented by Formula (1) below and a solvent: In Formula (1) below, R.sup.1 and R.sup.2 each represent a curable functional group, and D.sup.1 and D.sup.2 each represent a single bond or a linking group. L represents a divalent group having a repeating unit containing a structure represented by Formula (I) below and a structure represented by Formula (II) below. In Formula (I) and Formula (II) below, Ar.sup.1 to Ar.sup.3 each represent a group in which two hydrogen atoms are removed from an aromatic ring structure or a group in which two hydrogen atoms are removed from a structure in which two or more aromatic rings are bonded through a single bond or a linking group. X represents —CO—, —S—, or —SO.sub.2—, and Y represents —S—, —SO.sub.2—, —O—, —CO—, —COO—, or —CONH—. n represents an integer of 0 or greater.

The present invention discloses vinyl-modified maleimide, a resin composition using the same and a preparation thereof. The vinyl-modified maleimide has better solvent selectivity and solvent compatibility. The obtained preparation can satisfy the properties of no crack between multilayer boards and high frequency and low dielectric properties maintained after moisture absorption.

Provided are a resin composition having especially good compatibility and having dielectric properties (low dielectric constant and low dielectric dissipation factor) in a high frequency range, high adhesion to conductor, excellent heat resistance, high glass transition temperature, low thermal expansion coefficient and high flame retardancy, and a prepreg, a laminate and a multilayer printed wiring board using the resin composition. Specifically, the resin composition contains (A) a polyphenylene ether derivative having an N-substituted maleimide structure-containing group and a structural unit represented by the following general formula (I) in one molecule, (B) at least one thermosetting resin selected from the group consisting of epoxy resins, cyanate resins and maleimide compounds, and (C) a styrenic thermoplastic elastomer: ##STR00001## wherein R.sup.1 each independently represents an aliphatic hydrocarbon group having 1 to 5 carbon atoms, or a halogen atom, and x represents an integer of 0 to 4.

The disclosure provides a thermosetting polyimide resin and a manufacturing method thereof, a composition, a prepolymer, a film, an adhesive, and a use thereof. The composition includes at least: (a) a maleimide compound and (b) the thermosetting polyimide resin. The disclosure provides the thermosetting polyimide resin and the prepolymer, for manufacturing a film, an adhesive sheet, a cover film, a redistribution layer, a build-up board, a prepreg sheet, a high-frequency substrate, an integrated circuits carrier board, an adhesive for copper foil, a semiconductor packaging material, a radome, a substrate for server, a substrate for base station, a substrate for vehicle, etc.

An object of the present invention is to provide a film forming material for lithography that is applicable to a wet process, and is useful for forming a photoresist underlayer film excellent in heat resistance, etching resistance, embedding properties to a supporting material having difference in level, and film flatness; and the like. The problem described above can be solved by the following film forming material for lithography. A film forming material for lithography comprising: a compound having a group of formula (0A):

##STR00001##

(In formula (0A), R.sup.A is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and R.sup.B is an alkyl group having 1 to 4 carbon atoms.); and a compound having a group of formula (0B):

##STR00002##

Provided are a novel aromatic bismaleimide compound capable of being turned into a film without using a film-forming agent, and dissolved even in a solvent other than a high-boiling aprotic polar solvent; a production method of such compound; and a heat-curable cyclic imide resin composition that contains such compound, and is capable of being cured at a low temperature and turned into a cured product superior in mechanical properties, heat resistance, relative permittivity, dielectric tangent, moisture resistance and adhesiveness. The aromatic bismaleimide compound is represented by the following formula (1):

##STR00001##

wherein X1 independently represents a divalent group, m represents a number of 1 to 30, n represents a number of 1 to 5, each of A.sup.1 and A.sup.2 independently represents a divalent aromatic group. The heat-curable cyclic imide resin composition contains the above compound as a component (A), a reaction initiator (B) and an organic solvent (C).