Nanjing Unistar New Materials Isocyanates, Polyetheramines, Catalysts and UV Raw Materials

Selection and quotation of Unistar raw materials: MDI and TDI isocyanates, D-230 and D-2000 polyetheramines, amine hardeners, catalysts, AC silicone surfactants, flame retardants and UV monomers.

MDI, TDI and NDI Isocyanates, RE, RFE and RC Crosslinkers

Standard and high functionality isocyanates from the Unistar range. MDI (diphenylmethane diisocyanate) goes into rigid polyurethane foams, TDI (toluene diisocyanate) into flexible foams, NDI into elastomers, coatings and adhesives. RE, RFE and RC crosslink natural and synthetic rubber adhesives.

MDI: rigid PU foams
TDI: flexible PU foams
RE: primer on metal
RFE: primer on glass

Polyetheramines D-230, D-400, D-2000, T-403 and T-5000

D and T series polyetheramines cure epoxy resins and build polyurea. D-230 gives tough, clear, impact resistant coatings and adhesives free of surface blush, D-2000 is a key ingredient of spray polyurea, T-403 acts as an anti-sag agent in polyurethanes and T-5000 crosslinks polyurea.

D-230: molecular weight 230
D-400: molecular weight 400
D-2000: molecular weight 2000
T-5000: molecular weight 5000

Amine Hardeners MOCA, DETDA, DMTDA, MCDEA and DMP-30

Amines from the Unistar range for polyurethane and polyurea elastomers and epoxies. MOCA cures PU elastomers and epoxy resin, DETDA, DMTDA and MDBA extend the chain of polyurethanes and polyureas, PACM and DMDC cure epoxy systems, and DMP-30 both cures and accelerates epoxy resins.

MOCA: elastomer curing agent
DETDA: chain extender
MCDEA: chemical resistant coatings
DMP-30: epoxy accelerator

Polyurethane Foam Catalysts: Amines, Tin and Potassium

Amine and metal catalysts for polyurethane foams. DMCHA and PMDETA serve rigid foams, BDMAEE and TEDA both flexible and rigid foams, TMR2 and TMR30 give delayed trimerization, T-9 stannous octoate suits flexible slabstock foam, and K-15 and KAC are used in rigid isocyanurate foams.

A-33D: 33% TEDA in 67% DPG
A-1: 70% BDMAEE in 30% DPG
K-15: 75% potassium octoate
KAC: 30% potassium acetate

AC Series Silicone Surfactants for Polyurethane Foam

AC cell stabilizers for rigid and flexible foams and one component foam (OCF). AC-1805 and AC-1903 are universal grades for foams blown with 141b, cyclopentane and water, AC-1860 suits pentane, HFC and HFO, AC-8580 and AC-818 serve flexible foams, and AC-8002 is designed for winter OCF formulations.

AC-1809: low thermal conductivity
AC-18108: refrigerator foams
AC-8618: wide processing latitude
AC-8002: winter OCF formulations

Flame Retardants TCPP, TEP, TDCPP and PHT4-DIOL

Phosphates and a brominated diol that reduce flammability. TCPP goes into rigid PU foam, EVA, PVC and phenolic materials, TEP is a low viscosity flame retardant for rigid foam, TDCPP serves PU foams, epoxy and phenolic resins, and PHT4-DIOL is a reactive flame retardant for rigid foam.

TCPP: rigid foam, EVA and PVC
TEP: low viscosity
TDCPP: epoxy resins
PHT4-DIOL: reactive flame retardant

Anhydrides THPA, MTHPA, HHPA, MHHPA and Nadic Grades

Cyclic anhydrides cure epoxy resins in composites, electronics, laminates and coatings. MTHPA is used in solvent free paints and epoxy adhesives, MHHPA and 4-MHHPA are low toxicity curing agents, and nadic and nadic methyl anhydride serve potting, laminating and powder moulding.

THPA: coatings and polyesters
MTHPA: laminates and adhesives
4-MHHPA: low viscosity
Nadic grades: powder moulding

UV Monomers, Oligomers and Photoinitiators

Raw materials for UV curable coatings, inks and adhesives. DPGDA, TPGDA and HDDA monomers act as reactive diluents, TMPTA as a crosslinker and EA epoxy acrylate as a base resin. Photoinitiators TPO, TPO-L and 819 respond to LED wavelengths for depth curing, while 184 improves surface cure.

EA-80: epoxy acrylate in 20% TPGDA
TMPTA: crosslinking monomer
TPO: LED curing
EDB: photoinitiator synergist

Polyurethane Foam Catalysis: Gelling, Blowing, Trimerization

The Unistar range sorts catalysts by reaction. A-33D (33% TEDA in 67% DPG) is a low viscosity catalyst for the urethane gelling reaction, and A-33E (33% TEDA in 67% MEG) is used in prepolymer synthesis. BDMAEE and A-1 (70% BDMAEE in 30% DPG) suit flexible and rigid foams.

For isocyanurate foams the potassium salts K-15 (75% potassium octoate in 25% DEG) and KAC (30% potassium acetate in 70% DEG) are used, while TMR2 and TMR30 give delayed trimerization.

Low emission grades are DPA, PC15 and Catalyst T. T-9 stannous octoate is recommended for flexible slabstock polyether foams and DBTDL dibutyltin dilaurate for foams, coatings, adhesives and sealants. Equivalents listed in the range: DMCHA to Polycat 8, A-33D to Dabco 33LV.

Epoxy Curing: Polyetheramines, Anhydrides, Amines

Polyetheramines differ in molecular weight: D-230 is 230, D-400 is 400, T-403 is 440, D-2000 is 2000 and T-5000 is 5000. T-403 cures epoxies with moderate reactivity, D-2000 is a co-reactant in epoxy systems that need flexibility and toughness, and T-5000 adds adhesion and flexibility.

The anhydrides THPA, MTHPA, HHPA, MHHPA and 4-MHHPA are used in composites, electronics, laminates and coatings. The amines PACM and DMDC cure epoxy systems, MCDEA serves chemical resistant coatings and DMP-30 acts as curing agent and accelerator for epoxy resins.

Equivalents listed in the range: D-230 to Jeffamine D-230, PACM to Vestamin PACM, DMP-30 to Ancamine K54.

Solvents: U Aromatic and ADMA Amide Grades

Unistar aromatic solvents are coded by fraction: U-100A and U-100ULC are C9 aromatics, U-150, U-150D and U-150ND are C10, U-200 and U-200ND are C11.

They serve agricultural chemicals, coatings, fuel additives and oilfield and refinery chemicals; U-150 is also used in foundry resin and hydrogen peroxide production. U-150D and U-150ND are full REACH registered, and the product can be customized upon request.

The amide solvents ADMA10 (N,N-dimethyldecanamide) and ADMA810 are polar solvents and extractants and pesticide adjuvants. NMP, NEP and NOP dissolve polymers for electronics and coatings, and NVP is a monomer and solvent for polymerization.

Glycol Ethers, Acrylates and Polyols

The propylene glycol ethers PM, PE and PNB are solvents for coatings, inks and cleaners, PMA is a fast drying solvent for industrial coatings and electronics, and TPNB is a coalescent in water based coatings.

Among acrylates, glacial acrylic acid GAA is a building block for acrylic polymers in coatings, adhesives and textiles, butyl acrylate BA is a soft monomer for latex coatings and adhesives, and the hydroxyl monomers HEA and HEMA enable crosslinking in UV curable coatings.

For polyurethanes the range includes PTMEG 1000 and PTMEG 2000 (polytetramethylene ether glycol) for spandex, elastomers and coatings, 1,4-butanediol BDO for polyester and polyurethane resins, and CP95 cyclopentane as a blowing agent for insulating foam.

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