99208-50-1Relevant articles and documents
Single-crystal structure analysis of a novel aryl phosphinate diglycidyl ether
Cho, Ching-Sheng,Liau, Wen-Bin,Chen, Leo-Wang
, p. 525 - 529 (1999)
The crystal structure of 10-[2,5-bis(2,3-epoxy-1-propoxy)phenyl]-9-oxa-10-phosphaphenanthren-10-one has been studied by single-crystal X-ray diffraction. The unit cell of C24H21O6P, Mr = 436.4, is triclinic, P1, with a = 8.507 (3), b = 10.613 (4), c = 12.457 (3) A, α = 80.05 (3), β = 71.38 (2), γ = 76.69 (3)°, V = 1031.1 (6) A3, Z = 2, Dx = 1.406 Mg m-3 and μ(Mo Kα) = 0.17 mm-1. The final R (wR) is 0.063 (0.057) {w = 1/[σ2(F) + 0.0004F2]} for 3619 unique reflections measured at 295 K. The aryl phosphinate group bonded to the central phenyl ring comes close to one of the two glycidyl ether groups, the epoxide ring of which is ordered. The epoxide ring far from the aryl phosphinate group is disordered. The NMR chemical shifts of the protons of the glycidyl ether group close to the aryl phosphinate group are reduced by the 'ring-current effect'.
A novel diol precursor for preparing flame-retardant polyurethane
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Paragraph 0074; 0077; 0084; 0085, (2018/11/22)
The present invention relates to a novel diol precursor for manufacturing flame retardant polyurethane. The polyurethane manufactured by using the diol precursor for manufacturing the flame-retardant polyurethane of the present invention has excellent flame retardancy. In addition, after the thermoplastic flame retardant polyurethane is formed, a crosslinking reaction occurs by a double bond, resulting in thermosetting flame retardant polyurethane. As a result of cross-liked after processing, the thermosetting flame retardant polyurethane is excellent in durability as well as thermal stability.(AA) Step 1: crosslinkable flame retardant diol(BB) Step 2: flame-retardant polyurethane with double bonds(CC) Step 3: high durability flame-retardant polyurethane after crosslinking(DD) Durability(EE) Flame resistance(FF) All(GG) Phosphorus based flame retardant material(HH) Double bond(II) Urethane bindingCOPYRIGHT KIPO 2018
DOPS-1,4 phenol and preparation method thereof
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Paragraph 0017, (2016/10/10)
The invention discloses DOPS-1,4 phenol. The DOPS-1,4 phenol is characterized in that the formula is shown in the description. The DOPS-1,4 phenol is brown powdery solid, and the melting point ranges from 123 DEG C to 125 DEG C. A preparation operation method is simple, the yield is in the middle level, raw materials are wide in source, no severe pollution is produced, the repeatability is good, and mass production is easy.