Double Bond Chemical Photoinitiators, Oligomers and Polymer Stabilizers

Selection and quotation of Double Bond Chemical materials: DOUBLECURE TPO, 184 and ITX photoinitiators, DOUBLEMER oligomers and monomers, CHINOX 1010 and 168 antioxidants, CHISORB 292 and 944 light stabilizers.

DOUBLECURE TPO, 184, 173 and 369 Photoinitiators

Free radical cleavage type photoinitiators for UV curing of varnishes, inks and coatings. The range covers TPO and liquid TPO-L for white, matting and pigmented systems, non-yellowing 184 and liquid 173, grade 369 for inks, plus 200, BDK, CQ, 784, 1256 and 1819.

TPO: yellow crystalline powder
184: white crystal powder
173: colorless to light yellow liquid
369: grade for inks

ITX, Cationic 1176 Photoinitiators and EPD Synergists

Hydrogen abstraction type photoinitiators: ITX for pigmented coatings and inks, BP, liquid LBP, BMS, EMK, OMB and DETX. Cationic grades 1130, 1176 and 1190 serve thin and clear coatings on metal, plastic and paper. Amine synergists are EPD, OPD, 115 and 225.

ITX: pale yellow powder
Cationic grades 1130, 1176 and 1190
1176: clear yellow to amber liquid
EPD: synergist for pigmented coating

DOUBLEMER 528, 5220, 5400 and 1702 Oligomers

Aliphatic and aromatic urethane acrylates, epoxy acrylates, polyester and full acrylate, waterborne and cationic oligomers for UV and EB curing. DM 528 is hexa-functional, DM 5220 gives elongation above 500%, and DM 1702 is fatty acid modified for printing inks.

DM 528: viscosity 25,000–45,000 cps
DM 5220: elongation above 500%
DM 1702: viscosity 200,000–320,000 cps
DM 5400: optical clear adhesives

DOUBLEMER HDDA, TPGDA and TMPTA Monomers

Acrylic monomers for UV and EB coatings, inks and adhesives: mono, di and multifunctional IBOA, PHEA, HDDA, TPGDA, DPGDA, TMPTA, PETA, DPHA, ethoxylated TMP(3EO)TA and TMP(15EO)TA, plus methacrylates TMPTMA and PEG(200)DMA.

HDDA: 1,6 hexanediol diacrylate
TPGDA: low volatility and viscosity
TMPTA: hardness and high gloss
Methacrylates TMPTMA and PEG(200)DMA

CHINOX 1010, 1098, 168 and 626 Antioxidants

Phenolic primary antioxidants 1010, 1076, 1098, 245, 1024, 3114, BHT and thiophenolic 300 and 1165, phosphites 168, 626, 618 and TP-20, plus thioesters. They serve polyolefins, engineering plastics, polyurethanes, elastomers and adhesives.

1010: white powder or free flowing granule
1098: molecular weight 637
168: molecular weight 647
626: molecular weight 604

CHISORB 234, 327, 292 and 944 UV Absorbers and HALS

Benzotriazole UV absorbers P, 234, 326, 327, 5411 and liquid 5582, benzophenones BP-1, BP-3 and BP-12, and hindered amine light stabilizers 292, 770, 944 and 622LD. Grade 234 serves PET films and fibers, PC and coatings for high temperature processing.

234: molecular weight 447.6
327: molecular weight 358
944: molecular weight 1,800–3,300
292: light yellowish liquid

Photoinitiator by Pigment and Film Thickness

For white, matting and pigmented coatings the maker points to TPO and liquid TPO-L, which give through-cure of the whole layer. For clear varnishes where non-yellowing matters, 184 and liquid 173 fit.

Grade 369 targets inks, ITX is widely used in pigmented coatings and inks, and for pigmented coatings with minimal yellowing the maker offers the amine synergist EPD.

Cationic UV curing of thin and clear coatings on metal, plastic and paper relies on the iodonium salt 1130 and the sulfonium salts 1176 and 1190.

Oligomer and Monomer by Film Properties

The oligomer sets the base of the formulation. Hexa-functional aliphatic urethane acrylate DM 528 cures fast under UV or EB, does not yellow and resists marker pen stains, so it suits clear hard coatings on plastic.

DM 5220, a urethane dimethacrylate diluted in 25% IBOA, gives elongation above 500% for soft feel coatings and peelable films. DM 5400 targets optical clear adhesives.

Viscosity and crosslink density are tuned with monomers: HDDA adds elasticity and adhesion, TPGDA has low volatility and viscosity, TMPTA adds hardness and gloss.

Antioxidants and Light Stabilizers by Polymer

Phenolic CHINOX 1010 serves various polymers, elastomers and adhesives, while 1098 targets polyamides, polyurethanes and polyesters. Phosphites 168 and 626 complement phenolic grades in polyolefins, engineering plastics and elastomers.

For light stabilization of plastics the maker points to benzotriazole CHISORB 327, especially for ABS and polyolefin, and to hindered amine 770 for polyolefins, PS, PA and polyacetal.

Liquid 292 serves coatings and inks and can be emulsified for waterborne systems, and liquid absorber 5582 is advised together with a hindered amine stabilizer.

Grade Check and Batch Quotation

For selection we check the curing route (free radical or cationic), pigmentation and film thickness, oligomer viscosity and functionality, and for additives the polymer and processing route. Grade and equivalent are agreed on the maker technical data sheet (TDS) for the formulation.

Double Bond Chemical was founded in 1994, runs production plants in Yilan, Taiwan and Dafeng, China, and keeps its R&D center in Zhonghe, New Taipei City.

Double Bond Chemical and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Double Bond Chemical and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.