荫蒂被男人添的好舒服爽免费视频-av大片网址-亚洲аv电影天堂网-大号bbwassbigav女-东京热无码国产精品-午夜伦理影院-天天射视频-国产无遮挡18禁无码网站免费-国产专区一区二区-国产精品自产拍高潮在线观看-扒开双腿猛进入喷水高潮叫声-国产日本-青青草娱乐视频-亚洲人成人毛片无遮挡-国产毛片99-亚洲视频 欧美视频-国产免费福利-色综合色天天久久婷婷基地-伊人久久大香线蕉av成人-久久综合九色综合欧美亚洲

The polyether polyol CHE-628 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide under the action of a catalyst. The product is a high functionality, high molecular weight, high activity polyether without BHT, which can be used to produce low density and high resilience foam.

The polyether polyol CHE-828 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide under the action of a catalyst. The product is a high molecular weight and high activity polyether without BHT and amine. This product is a low odor product, which is mainly used in the production of high resilience cold curing foam such as automobile, motorcycle, bicycle cushion, steering wheel, etc. In addition, it can also be used in the production of automobile dashboard filling foam.

The polyether polyol CHE-330N is prepared by using a compound containing an active hydrogen group as an initiator and carrying out ring-opening polymerization reaction with ethylene oxide and propylene oxide under the action of a catalyst. The product is a typical high-activity polyether without BHT and amine which has a wide application range. In addition, the product is a low odor product, which is usually mixed with polymer polyols to produce high resilience cold curing foam for automobiles, motorcycles, bicycle cushions, steering wheels, etc. And it can also be used to make automotive dashboard filling foam.

The polyether polyol CHE-822P is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide in the presence of a special catalyst. In addition, the product is a BHT-free and amine-free polyether with high molecular weight and high activity which has the characteristics of low unsaturation, low odor, low VOC and the like and it is mainly used in the production of low density and high resilience foam.

The polyether polyol CHE-2801L is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide under the action of a catalyst. The product is a high molecular weight and high activity polyether without BHT and amine. In addition, it is a low-aldehyde product, which has no odor at normal temperature, is mainly used for replacing the conventional polyether polyol with 6,000 molecular weight and high activity, can obviously improve the foam odor and VOC, is mainly applied to the production of high-resilience cold-curing foam of automobiles, motorcycles, bicycle cushions, steering wheels and the like, and can also be used for the production of filling foam of automobile instrument panels.

The polyether polyol CHE-3481L is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide under the action of a catalys which is a typical high-activity polyether without BHT, odor and amine, and has a wide application range. In addition, the product is usually mixed with polymer polyols for the production of high-resilience cold-curing foam for automobiles, motorcycles, bicycle cushions, steering wheels, etc which can also be used for the manufacture of automotive dashboard filling foam.

The polyether polyol CHE-1Q59 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator with ethylene oxide and propylene oxide under the action of a catalyst. The product is a high molecular weight and high activity polyether without BHT and amine which is a low odor product, mainly used in the production of car cushions, steering wheels and other high resilience foam and other fields.

The polyether polyol CHE-632N is prepared by using a compound containing an active hydrogen group as an initiator and carrying out ring-opening polymerization reaction with ethylene oxide and propylene oxide under the action of a catalyst. The product is a high molecular weight and high activity polyether without BHT and amine which is a low odor product and mainly used in the production of high resilience foam such as automobile cushion, steering wheel and other fields.