4,4'-Isopropylidenediphenol/epichlorohydrin copolymer
Synonyms
Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2-(chloromethyl)oxirane;
Bisphenol A, (chloromethyl)oxirane polymer;
Category
Polymer Surfactant
> Epoxy Resins
Chemical Numbering System
CAS: 25068-38-6
EINECS: 500-033-5
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), liquid to solid.
Solubility insoluble in water.
Stability stable.
Risk Solid (or liquid) form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
1780mg/kg[1] |
|
mouse intraperitoneal LD50 |
4000mg/kg[1] |
|
mouse oral LD50 |
15600mg/kg[1] |
|
mouse oral LD50 |
> 500mg/kg[1] |
|
mouse oral LD50 |
20000mg/kg[1] |
|
mouse skin LD50 |
> 1270mg/kg[1] |
|
rabbit skin LD50 |
> 20mL/kg[1] |
|
rat oral LD |
> 5000mg/kg[1] |
|
rat skin LD |
> 2000mg/kg[1] |
|
rat intraperitoneal LD50 |
1400mg/kg[1] |
|
rat intraperitoneal LD50 |
2200mg/kg[1] |
|
rat intraperitoneal LD50 |
2400mg/kg[1] |
|
rat oral LD50 |
10.7mL/kg[1] |
|
rat oral LD50 |
11400mg/kg[1] |
|
rat oral LD50 |
> 1000mg/kg[1] |
|
rat oral LD50 |
13600mg/kg[1] |
|
rat oral LD50 |
30000mg/kg[1] |
|
rat skin LD50 |
> 1200mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, dispersing, adsorbing abilities. The most widely used epoxy resin.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid/liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid/liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB/T 13657 Bisphenol-A epoxy resin
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as film-forming agent.
Use as adhesive.
Use as non-metallic material.
2, Personal care products
Film-forming agent in personal care products.
3, Coatings
Film-forming agent in coatings.
Manufacturers
References
[1]: ChemIDplus. 25068-38-6, 4,4'-Isopropylidenediphenol/epichlorohydrin copolymer
Update: 20140818(1); 20200322(2);