/It was/ demonstrated that inducers and inhibitors of cytochrome P-450 (CYP) affect the rate of degradation of (14)C-labeled polychlorinated dodecanes (C12) containing 68.5% (CP-SH), 55.9% (CP-SH) and 17.4% Cl (CP-SL) to (14)CO2 in exposed C57Bl mice. Pretreatment with the inhibitor piperonyl butoxide decreased the amount of (14)CO2 formed, and the decrease was more pronounced with increasing degree of chlorination. The inhibitor metyrapone decreased the exhalation of (14)CO2 but was only investigated in mice exposed to C12;68.5% Cl. The cytochrome P-450 (CYP2B1; CYP2B2) inducer, phenobarbital, moderately increased the rate of (14)CO2 formation from chlorinated paraffin with 68% Cl, whereas the P-448 (CYP1A1; CYP1A2) inducer, 3-methylcholanthrene, did not affect the degradation rate, indicating a cytochrome P-450-dependent metabolism of chlorinated dodecanes yielding (14)CO2. /Short chain length chlorinated paraffin/
Female Sprague-Dawley rats in groups of four were exposed intravenously to 5-6 mg/kg body weight of (14)C-labeled poly-chlorinated hexadecane (C16;65% Cl, CP-MH). Less than 3% of the radioactivity in the bile was due to unchanged parent compound. The metabolites in the bile appeared to be conjugates of N-acetylcysteine (mercapturic acid) and glutathione. /Intermediate chain length chlorinated paraffin/
Evaluation: There is sufficient evidence for the carcinogenicity of a commercial chlorinated paraffin product of average carbon-chain length C12 and average degree of chlorination 60% in experimental animals. There is limited evidence for the carcinogenicity of a commercial chlorinated paraffin product of average carbon-chain length C23 and average degree of chlorination 43% in experimental animals. No data were available from studies in humans on the carcinogenicity of chlorinated paraffins. Overall evaluation: Chlorinated paraffins of average carbon-chain length C12 and average degree of chlorination approximately 60% are possibly carcinogenic to humans (Group 2B).
/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/
/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poisons A and B/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
解毒与急救
/SRP:/ 高级治疗：对于无意识、严重肺水肿或严重呼吸困难的病人，考虑进行口咽或鼻咽气管插管以控制气道。使用气囊面罩装置的正压通气技术可能有益。考虑使用药物治疗肺水肿……。对于严重的支气管痉挛，考虑给予β激动剂，如沙丁胺醇……。监测心率和必要时治疗心律失常……。开始静脉输注D5W /SRP: "保持开放"，最低流量/。如果出现低血容量的迹象，使用0.9%生理盐水（NS）或乳酸林格氏液。对于伴有低血容量迹象的低血压，谨慎给予液体。注意液体过载的迹象……。使用地西泮或劳拉西泮治疗癫痫……。使用丙美卡因氢氯化物协助眼部冲洗……。 /Poisons A and B/
/SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poisons A and B/
Chlorinated paraffins are slowly absorbed by the dermal route in Sprague-Dawley rats. Two (14)C-labeled chlorinated paraffins, C18;50-53% Cl (CP-LH) and C28;47% Cl (CP-LL), were applied to rat skin (5-7 animals of each sex) at a concentration of 66 mg/sq cm, approximately equivalent to 2000 mg/kg body weight. Only 0.7% (males) and 0.6% (females) of the C18 dose was absorbed after 96 hr. Only 0.02% of the C28 dose was absorbed in males whereas in females the level was not detectable. This indicates that increasing chain length leads to decreased permeability. Of the absorbed C18 dose, 40% was exhaled as (14)C-labeled CO2, and 20% was excreted in urine and 20% in feces. /Long chain length chlorinated paraffins/
The absorption of two chlorinated paraffins through human skin has been studied in vitro. There was no absorption of Cereclor S52 (C14-19;52% Cl, CP-MH) following a 54-hr application to the surface of the epidermal membranes using five different receptor media. Similarly, using Cereclor 56L (C10-13; 56% Cl, CP-SH; 18.5% w/w solution in a typical cutting oil) no absorption was detected for 7 hr, but after 23 hr a slow but steady rate of absorption was detected (e.g., 0.05 +/- 0.01 ug/sq cm per hr +/- SEM; n = 6; receptor medium PEG-20 oleyl ether in saline), which was maintained for the duration of the experiment (56 hr). Owing to the anticipated low rate of absorption, the chlorinated paraffin samples were spiked with [(14)C] n-pentadecane and [(14)C] n-undecane for Cereclor S52 and 56L, respectively, in order to facilitate detection of the absorbed material. Measurement of the (14)C-alkanes was taken as a surrogate for the chlorinated paraffins, on the assumption that their rates of absorption were similar.
Female C57Bl mice were administered 12.5 MBq/kg body weight (340 uCi) (for autoradiography) or 1.25 MBq/kg body weight (34 uCi) (for determination of radioactivity) of (14)C-labeled chlorododecanes (C12) with different chlorine contents (17.5% [CP-SL], 55.9% [CP-SH] and 68.5% [CP-SH]) either by gavage or intravenous injection. Uptake of radioactivity was found by autoradiography to be highest in tissues with high cell turnover/high metabolic activity, e.g., intestinal mucosa, bone marrow, salivary glands, thymus and liver. The highest radioactivity was achieved with the chlorinated paraffin that had the lowest chlorine content. It was found that the long period of retention of heptane-soluble radioactivity, which indicated unmetabolized substance, in liver and fat after oral dosing increased with degree of chlorination. In this study it was also found that 30 to 60 days after injection of C12;17.5% Cl and C12;55.9% Cl a considerable retention of radioactivity was seen in the central nervous system. Exposure of late gestation mice showed a transplacental passage of radioactivity, and (14)C-labeling was primarily noted in the liver, brown fat and intestine of the fetuses. /short chain length chlorinated paraffin/
(14)C-Labeled [1-(14)C]polychlorohexadecane (C16;34.1% Cl, CP-ML) was given to C57Bl mice either by gavage (females) or intravenously (both sexes) at a radioactivity level of 370 kBq/animal (10 uCi) (corresponding to 0.44 umol of the chlorinated paraffin). No difference in the distribution patterns was found between the oral and intravenous administration routes. After analysis by autoradiography a high level of radioactivity was found in tissues with a high cell turnover rate and/or high metabolic activity, and lower levels could be seen in the white fat depots. High levels of radioactivity were observed in the liver, kidneys, spleen, bone marrow, brown fat, intestinal mucosa, pancreas, salivary gland and the Harderian gland 24 hr after intravenous injection. After 12 days high levels of radioactivity were seen in the adrenal cortex, abdominal fat and in the bile. Later after injection (30 days), prominent radiolabeling of the brain was found which was as high as in the liver. The chlorinated paraffin was also administered intravenously to pregnant mice, and uptake of radioactivity in the fetuses was observed. When the mice were administered on day 10 of pregnancy no tissue-specific localization was found, but after administration in late pregnancy (day 17) the distribution pattern after 6 hr was similar to that of adult mice when examined 24 hr after administration. /Intermediate chain length chlorinated paraffin/
ANTI-GRAFFITI EMULSIONS HAVING A MOISTURE BARRIER PROPERTY
申请人：Repsol Lubricantes y Especialidades, S.A.
公开号：EP2565239A2
公开（公告）日：2013-03-06
The invention relates to anti-graffiti emulsions comprising at least one type of wax, oil, additives and at least one carrier or excipient. In addition, the invention relates to a method for preparing said anti-graffiti emulsion, a method for applying same and a method for cleaning and recovering the protective effect of graffitied surfaces. Finally, the invention relates to the use of the anti-graffiti emulsions to protect all types of surfaces against graffiti and posters.
Lithium-based grease and preparation method thereof
申请人：Guangxi LiuGong Machinery Co., Ltd.
公开号：US11518953B2
公开（公告）日：2022-12-06
A lithium-based grease and the preparation method thereof are provided. The raw materials for preparing the lithium-based grease include in parts by weight: 75-88 parts of base oil, 0.5-2.5 parts of antiwear agent, 0.1-1.5 parts of antirust agent, 0.1-1.5 parts of antioxidant, 5-25 parts of lubricant, 5-15 parts of thickening agent, and 0.6-2.0 parts of saponifying agent. The raw materials also include hydroxyl compound-containing modified graphene containing quaternary ammonium salt or aromatic ring. The grease has good colloid stability and mechanical stability, can greatly improve the antiwear property. More than that, the grease has excellent oxidation resistance, and can significantly shorten the reaction time of the saponification, reduce the reaction temperature of the saponification.
ENVIRONMENTALLY FRIENDLY HIGH PRESSURE LUBRICANT ADDITIVE
申请人：Sloan, Clifford Reginald
公开号：EP3294848A1
公开（公告）日：2018-03-21
LITHIUM-BASED GREASE AND PREPARATION METHOD THEREOF
申请人：Guangxi LiuGong Machinery Co., Ltd.
公开号：EP3931289A1
公开（公告）日：2022-01-05
ANTI-GRAFFITI EMULSIONS WITH ANTI-HUMIDITY BARRIER CHARACTERISTIC
申请人：Dabrio Ramos Javier
公开号：US20130095249A1
公开（公告）日：2013-04-18
The present invention relates to anti-graffiti emulsions comprising at least one type of wax, oil, additives and at least one medium or carrier. Additionally, the present invention relates to a process for preparing an anti-graffiti emulsion, a method for application thereof and a method for cleaning and recovering the protective effect of graffiti-painted surfaces. Finally, the invention relates to the use of the anti-graffiti emulsion for any type of surface against graffiti and sticking of posters.
