摘要:
A camera viewfinder optical system is interlockingly connected with a rotatable cam ring used to zoom a camera lens barrel system unit forwardly in an optical axial direction thus eliminating a bulky cam portion on the outer surface of the cam ring so a more compact zoom lens barrel unit is possible.
摘要:
A lens barrel unit for a zoom lens camera which is more compact in the axial optical direction in the retracted state because the lens group moving means and linear movement guiding means are juxtaposed along the optical axis. The lens barrel unit also has a reduced outer diameter due to a reduction in the need for a separate outer helicoid portion of the moving means and elimination of guiding grooves on the inside of the fixed barrel unit.
摘要:
A polyolefin resin composition is excellent in processing cycle and mechanical characteristics and provides small deformation during molding, i.e., small deformation due to anisotropicity in shrinkage factors. Specifically, provided is a polyolefin resin composition obtained by incorporating 0.01 to 10 parts by mass of, preferably 0.05 to 5 parts by mass of (B) a compound represented by the following formula (I) with respect to 100 parts by mass of (A) a polyolefin resin, preferably a polypropylene. The polyolefin resin composition may also contain, if necessary, a phenolic, phosphorus, thioether or hydroxyamine antioxidant, an ultraviolet absorbent, a hindered amine light stabilizer, or other nucleator, or the like.
摘要:
Disclosed is an olefin elastic resin composition wherein a rubber component is blended in a large amount. This olefin elastic resin composition has an excellent weatherability without suffering from bleeding or blooming. Specifically disclosed is an olefin elastic resin composition which is obtained by blending 10 to 30 parts by mass of an olefin type rubber component, 0.001 to 10 parts by mass of a hindered amine compound represented by the general formula (1) below, (wherein R1 represents a hydrogen atom, a hydroxy group, an alkyl group having 1 to 30 carbon atoms, a hydroxyalkyl group having 1 to 30 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a hydroxyalkoxy group having 1 to 30 carbon atoms, or an oxyradical; and R2 represents an alkyl group having 1 to 30 carbon atoms or an alkenyl group having 2 to 30 carbon atoms) and 0.001 to 10 parts by mass of a benzoate compound represented by the general formula (2) below, (wherein R3 and R4 independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or the like; and R5 represents an alkyl group having 1 to 30 carbon atoms) with respect to 100 parts by mass of a polyolefin resin.
摘要:
Disclosed is a composition for treatment or prevention of diseases of animals or for addition to feeds for acceleration of growth which contains a mycinamicin antibiotic and at least one compound selected from the group consisting of a quinoxaline-di-N-oxide and a tetracycline antibiotic as effective ingredients. Administration of this composition affords excellent synergistic effects in antibacterial action and good body weight gaining effect and growth accelerating effect.
摘要:
Disclosed is an optical film or optical sheet which is used for a polarizing plate using iodine as a dye or a liquid crystal display device using the polarizing plate. The optical film or optical sheet is made from a resin containing a triazine compound represented by general formula (1). [In the formula, R1 represents a linear or branched alkyl group having 1-12 carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an alkenyl group having 3-8 carbon atoms, an aryl group having 6-18 carbon atoms, an alkylaryl group having 7-18 carbon atoms, or an arylalkyl group having 7-18 carbon atoms; and R2 represents an alkyl group having 1-8 carbon atoms or an alkenyl group having 3-8 carbon atoms.]
摘要:
The invention provides a resin additive master batch which can contain a resin additive having a melting point of not higher than 80° C. to a high concentration, with which breakage of a strand does not occur and continuous production can be attained, and with which the surface tackiness of pellets is improved.The resin additive master batch comprises 80 to 150 parts by weight of (B) resin additive having a melting point of not higher than 80° C., and 0.3 to 5 parts by weight of (C) organic acid metal salt, with respect to 100 parts by weight of (A) polyolefin resin. As the (B) resin additive having a melting point of not higher than 80° C., a UV absorber, a hindered amine compound or a mixture thereof is preferred.
摘要:
A structure of seat cushion frame in a vehicle seat, which has a pair of upwardly projected side frames, one of them being disposed at the side of a door of the vehicle, wherein such one of the side frames is formed with a cut-away portion at the rearward are thereof, with a forward side frame being thus defined therein, and wherein an expandable member is extended between the cut-away portion and forward side frame. The expandable member acts to allow vertical flexture of the corresponding lateral bolster portion of seat cushion, after upholstering the seat cushion frame to form the seat cushion, so that a passenger can descend from or climb onto the seat with a comfortable touch.
摘要:
A cellulose microcapsule having absorbing capacity, consisting of outer semipermeable barrier layer of cellulose and absorbent powders dispersed within inner cellulose gel matrix is prepared by dispersing adsorbent powders in a solution of cellulose dissolved in a solvent which is not adversely affected by the adsorbing capacity of adsorbent powders and capable of dissolving cellulose, then forming the dispersion into droplets and finally precipitating cellulose on the droplets. It is excellent in resistance to chemicals such as acids, alkalis or organic solvents and is useful for various purposes.
摘要:
The invention provides a woody synthetic resin composition having excellent weather resistance, and a molded body thereof. The synthetic resin composition of the invention contains a wood flour in an amount of 5 to 200 parts by mass and a hindered amine compound having a partial structure represented by the following general formula (1) wherein R1,R2,R3 and R4 each independently represents an alkyl group having 1 to 4 carbon atoms, and R represents an alkyl group having 1 to 18 carbon atoms, an alkyl group substituted by hydroxyl group having 1 to 18 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms, in an amount of 0.01 to 5 parts by mass, with respect to 100 parts by mass of a synthetic resin, and a molded body thereof.