Chung-shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense

Chanda Chemical Corp.

National Chung Shan Institute of Science and Technology

Chung-shan Institute of Science and Technology, Armaments Bureau, M.n.d

Other

Ru-Jong Jeng

Wen-Chiung Su

Chien-Hsin Wu

Shenghong A Dai

Ying-Chi Huang

Wei-Ho Ting

Sheng-hong Dai

Sheng-Hong Dai

Shih-Chieh Yeh

Ching-Hsuan Lin

Yu-Hsiang Huang

Chia-Cheng Chang

Shi-Min Shau

Chun-Ku Liu

Jau-Hsiang Yang

Sheng-hong A Dai

Kuan-Ting Chen

Yu-Ru Lin

Yu-Wen Lai

Mao-Syong Lin

Hsin-Cheng Chiu

Tzu-Wen Kuo

Cheng-Che Tsai

Tzong-Yuan Juang

Ching-Shiang Yu

Guan-Liang Chen

Chun-Ming Yeh

Han-Sheng Lin

Chia-Hsuan Lin

An organic-inorganic hybrid material is disclosure. The organic-inorganic hybrid material contains 5&#x2dc;50 wt % of inorganic compounds and has a characteristic peak at 1050&#xb1;50 cmin FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material 'isocyanates'. In particular, the isocyanates are prepared from carbonate containing compounds and amines.

Organic-inorganic hybrid material, fabrication process of the same and its starting material

A thermal plastic polyurethane with a stress more than 2.5 MPa, its preparing formulation and making process are disclosed. In particular, the thermal plastic polyurethane with a stress more than 2.5 MPa is prepared from a formulation comprises a polycarbonate derivative and a chain extender.

High stress thermal plastic polyurethane, its preparing formulation and making process

An organic-inorganic hybrid material is disclosure. The organic inorganic hybrid material contains 5&#x2dc;50 wt % of inorganic compounds and has a characteristic peak at 1050&#xb1;50 cmin FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material 'isocyanates'. In particular, the isocyanates are prepared from carbonate containing compounds and amines.

A thermoset epoxy resin, its preparing composition and making process are disclosed. In particular, the thermoset epoxy resin is glycidyl ether of diphenolic bis-carbamate and formed by curing a one component epoxy composition and has a general structure as shown in formula (1).

Thermoset epoxy resin, its preparing composition and making process thereof

A method of producing a five-carbon ring derivative-containing polyurethane involves introducing a DCPD-derived 5-carbon cyclic compound into a polyurethane material and effectuating polymerization in the presence of a solvent of a low boiling point and low toxicity to produce a five-carbon ring derivative-containing polyurethane of a high molecular weight.

Method of producing five-carbon ring-containing compound and five-carbon ring derivative-containing polyurethane, and five-carbon ring derivative-containing polyurethane

Epoxy/MMT composite material and a crosslinking method for epoxy/MMT composite material with second order nonlinear optical properties are introduced. Chromophore-containing intercalating agents are applied to modify montmorillonites (MMTs) to form organoclays by an ion-exchange process, wherein the chrmophores are neatly packed on exfoliated epoxy/organoclay nanocomposites. As a result, optical nonlinearity, i.e. the Pockels effect is observed for the nanocomposites without resorting to the poling process due to self-assembly process. Furthermore, a series of epoxy/MMT nanocomposites comprising thermally reversible furan-norbornene Diels-Alder adducts are prepared to establish a crosslinking feature. Self-alignment behavior, electro-optical (EO) coefficient and temporal stability of the epoxy/MMT nanocomposites are improved by the Diels-Alders crosslinking.

Epoxy resin oligomer with second order nonlinear optical properties, chromophores, and method of manufacturing the oligomer-containing crosslink layered epoxy/MMT composite material with second order nonlinear optical properties

A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl diisocyanate and isobutyryl chloride using triethylamine as catalyst.

Method for making waterborne polyurethane with a reactive functional group and a nanocomposite made of the same

A facile synthesis of amphiphilic hyperbranched polymers consisting of poly(amic acid) and polyimide was developed via 'A+B' approach from difunctional anhydride and trifunctional hydrophilic poly(oxyalkylene)triamine. Various amphiphilic hyperbranched poly(amic acid)s (HBPAAs) with terminal amine functionalities and amic acid structures were prepared through ring-opening polyaddition at room temperature, followed by thermal imidization process for the formation of hyperbranched polyimides (HBPIs), accordingly. The resulting HBPIs were analyzed by GPC, indicating the molecule weights of 5000&#x2dc;7000 g/mol with a distribution of polydispersity between 2.0 and 3.8. The amine titration for HBPIs indicated the peripheral total-amine contents to be 8.32&#x2dc;18.32 mequiv/g dependent on compositions.

Multifunctional hyperbranched organic intercalating agent, method for its manufacture and its use

A method disclosed for making a side-chain dendrimer vesicle. The method includes the steps of: At first, there is provided a random copolymer with a narrow distribution of molecular weights by active polymerization and chemical modification. Then, chemical modification is executed to graft various generations of dendrimers to the random copolymer to provide a side-chain dendritic random copolymer with various generations. Two steps of emulsification are taken to induce macromolecular self-assembling of the side-chain dendritic random copolymer solution to form the macromolecular vesicle. The side-chain dendrimer includes C&#x2dc;Chydrophobic alkyl chains.

Method for providing a side-chain dendrimer vesicle

The present invention relates to a one-pot synthetic method for synthesizing silver-containing waterborne polyurethane (WBPU). The method includes the steps of adding a silver ion-containing solution, such as silver nitrate solution, into WBPU emulsion to form a silver-containing PU emulsion by stirring, and dehydrating the silver-containing PU emulsion so as to obtain a WBPU containing nano-scaled silver particles having a uniform particle size and good dispersibility. The present invention provides a method that can be easily and speedily operated, and the silver-containing WBPU prepared according to the method of the present invention exhibits excellent antibacterial, bactericidal and deodorant effects but using a small amount of silver.

One-pot synthetic method for synthesizing silver-containing waterborne polyurethane

An organic polyurethane shape memory material includes a C10 chain or C18 chain and consists of hard segment and soft segment. The material is produced by reacting the single-chain type dendrimer with diethylenetriamine to produce dendrimer. Then dendrimer reacts with N-(3-aminopropyl)diethanolamine to produce dendritic diols. Next, polymer HO(CHO)xCHOCH(CHO)OH, where x+y=25&#x2dc;26, reacts with methylenedi-p-phenyl diisocyanate, and at least one type of dendritic diols is added to produce the organic polyurethane shape memory material.

Organic polyurethane shape memory material and a preparation method thereof

Methods for producing dendrons of different generations with hydrophobic functional end-groups, and for producing polyurethanes with the side-chain dendrons are disclosed step-by-step. The dendron with hydrophobic functional end-groups in the polyurethane systems, and the honeycomb-like structure thin films are obtained by a breath-figure process. The structures of dendrons and dendritic side-chain polyurethanes are respectively expressed in the following and the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives. 

Dendron, polyurethane with side-chain regular dendron, and producing methods thereof

The invention discloses a cross-linked epoxy resin with flame-retardant properties and method for producing the same. The polymeric material of the invention includes an epoxy resin, a curing agent and a modification agent. Particularly, the modification agent is a derivative of 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO). Moreover, the curing agent is 4,4'-diaminodiphenyl methane (DDM), or tris(4-aminophenyl)amine (NNH).

Development of a cross-linked epoxy resin with flame-retardant properties

The invention discloses a novel cross-linked epoxy resin with flame-retardant properties and method for producing the same. The polymeric material of the invention includes an epoxy resin, a curing agent and a modification agent. Particularly, the modification agent is a derivative of 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (DOPO). Moreover, the curing agent is 4,4'-diaminodiphenyl methane (DDM), or tris(4-aminephenyl)amine (NNH).

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Taipei, Taiwan

Ru-Jong Jeng