TW201037000A - Flexible polyurethane low resilience foam and method for preparation - Google Patents

Abstract

A novel flexible polyurethane low resilience foam based on reaction product of isocyanate-reactive composition with isocyanate composition is invented. The flexible polyurethane low resilience foam is prepared from reacting (a) isocyanate composition containing no aromatic isocyanate which has isocyanate group attaching directly to benzene ring, (b) isocyanate-reactive composition, (c) catalyst, and optionally (e) one or more ingredients selected from following: water, surfactants, cross-linkers and auxiliaries. The flexible polyurethane low resilience foam produced according to the preparation method has isocyanate index of from 75 to 105, density range of from 16 to 160 kilograms per cubic meter, and ball resilience of less than 15%.

Description

201037000 VI. Description of the Invention: [Technical Field] The present invention relates to an aromatic isocyanate-based polyurethane which is not directly bonded to a benzene ring by an aliphatic isocyanate and/or an alicyclic isocyanate and/or an isocyanate group. Foam and its preparation method. It also relates to the reaction system and specific isocyanate-reactive component compositions useful in the process. [Prior Art] Soft low-rebound polyurethane foam has the characteristics of slow and gradual recovery after compression, and is usually called "slow rebound, foam, "viscoelastic, foam, "dead," Foam, "high damping, foam, shape memory" foam or "slow recovery" foam. Although most of its physical properties are similar to conventional polyurethane foams, low rebound foam back Low elasticity, usually less than about 15%., Low resilience polyurethane foam has excellent impact resistance and excellent shock absorption. It also has shape adjustment and energy attenuation characteristics, making it an ideal seat cushion. The low resilience foam can be used for mattresses, pillows, car seat cushions and furniture cushions to reduce pressure points, and used as an impact resistant material for sports mats or helmets. It has been used in bras and shoulder pads. It is usually prepared from low resilience polyurethane foam polyol blends containing hard or semi-hard equivalents of less than 450 equivalents. Trihydric alcohol and soft triol with an equivalent weight exceeding _ The large-scale soft-shell soft-rebound polyurethane foam is prepared by multiplying the isocyanic acid-based index (the isocyanate group and the isocyanate S-based hetero group). In most cases, The index is below 90. These 7 highly crosslinked, low molecular weight polymers have a lower mechanical properties, especially tearing, elongation and elongation. They also result in a narrow operating range, which usually causes the foam to shrink. Adjust the amount of t-alcohol,|► 纽 s 、, surface tanning agent, cross-linking agent, catalyst or other additives 4 201037000 Practical mechanical properties and available types to prepare low-grant IU hair surface to obtain low back A foam that reproduces reproducible characteristics. U.S. Patent 7,38, discloses a ugly basis value (reactive reactive base amount in a polyol (four degrees)' method described in ASTM D Hybrid 88) The flexible polyol provides foaming properties and reduces cross-linking, thereby improving processability. A similar process is disclosed in U.S. Patent No. 6,617,369. a polyol composition composed of a polyol Having low rebound and improved foam processability.

U.S. Patent No. 6,39(10) describes poly- or polyepoxy-smoke mono- and semi-rigid polyols having a numW m〇iecuiar weight of more than about unicorn and a filament value of less than about 56 mg K〇H/g. A foam having a rebound resilience of less than about 15% while maintaining a isocyanate index of more than 90 is obtained. The use of plasticizers has been reported, see, for example, U.S. Patent No. 6, 〇, 871, in which the use of the functionalized rocky soil 'Yang (9) aliphatic containing a primary hydroxyl group (Primaryhydr〇xylgr〇up' also known as primary hydroxyl group) has been reported. The polymer and its mixture f are prepared in a cold gas nail with a good softness of the gauze foam. Soft polyurethane low resilience foam was first developed in the mid-1960s as a research project for NASA (Aeronautics and Space Administmtion). The purpose of the development is to address the low-transfer color redistribution in the take-off and landing of the wealthy people who are stabbed G-force (G_F following), and to provide a more comfortable seat for commercial aircraft pilots during the long-line process (see eg "ΙΝ · τ〇υαι", pp. π, vol. 1, p. 1, June 2003, regular publication of the Polyurethane Foam Association (pFA), ρ〇Β〇χΐ459,

Wayne, NJ). Unfortunately, due to its low index properties and the large amount of volatile amine catalyst required for formulation, the developed low resilience foam releases a large amount of volatile organic compounds (v〇c), which prevents it from being used in confined spaces. From the job 彳 4 ‘ it’s never been too much or too much. With the recent concern about the safety of aromatic amines, such as the methyl strepamine as a degradation reaction product of polyurethane foam prepared from toluene diisocyanate (tdi) 5 201037000 or diphenylmethane diisocyanate (MDI) TDA) and diaminodibenzane (MDA) have developed a variety of synthetic methods to reduce this emissions. TDA and MDA are highly toxic compounds and possible carcinogens of public concern. U.S. Patent 6,391,935 (issued May 21, 2002, issued by Bayer) further discloses that when a toluene diisocyanate (TDI) is used to prepare a viscoelastic foam at a low index, the resulting foam may contain undesirable stages. Contains: E 曱 · · an amine 'especially after the normal vulcanization process." EUROPUR (European Association of Flexible Polyurethane Foam Manufacturers, founded in 1966) In 2007, a voluntary project called "CertiPUR" was announced. CertiPUR is a project that emphasizes the industry's commitment to product safety, health and environmental (SHE) performance. In order to comply with the CertiPUR standard, many hazardous substances are restricted or prohibited. According to the CertiPUR standard, the upper limit of the total amount of 2,4-TDA and 4,4'-MDA and the amount of HTDA and 4,4,-MDA in the polyurethane foam is 5 ppm, based on the weight of the foam. On June 1, 2007, the European Union officially implemented the “REACH, (Registrati〇n Evaluati〇nand Authorization of Chemicals) Act, on all chemicals in the EU market and entering the EU market. Mandatory registration, evaluation and licensing, and implementation of safety monitoring. The European Chemicals Agency published 15 kinds of concern (SVHC ' Substance of Very High) according to Article 57 of the Act on April 28, 2008. Concerns, 4, 4, • MDA is one of the following. US Patent Application US 2005/0176838 A1 describes the use of a polyol composition comprising at least one acrylate polyol having a base value of 15-50 mg KOH/g. Reducing the hydrolytic cleavage of ethyl amino citrate and urea linkages. This patent describes "this fracture not only degrades significantly in performance characteristics, but also produces aromatic amines such as f-phenylenediamine (TDA) and diaminodiphenylmethane. (MDA),,. U.S. Patent No. 6, _, 6G7, a method for preparing a flexible polyurethane foam by at least one type of organic or money-added isocyanuric acid knives, and then reacting the obtained isophthalic acid ester component with a polyol component . The anhydride in the polyurethane foam is further hydrolyzed to the relevant acid, especially under humid conditions, 6 201037000. The water service frequency mine has cleared the hair towel to deposit the surface silking agent, thus preventing the chaos and the surface keys from dissociating under warm and humid conditions. Unfortunately, due to the increased indignation of the reaction mixture, this method will reduce the activity of the foam. Due to its low = low it can only be used for more active aromatic isocyanic acid rather than aliphatic or cycloaliphatic isocyanate reactions. It is difficult to prevent the formation of such aromatic amines by using the above-mentioned _ age-deficient 岐. All of the examples of U.S. patents (10), U.S. Patent No. 6, _, _ _ reported a reduction in the aging sample but still high content and A %, have been treated specifically (refer to the two patents In the example, the 2, 4 rhyme * 4, 4, and the content of all the foam samples are far beyond

The upper limit in the CertiPUR standard). Due to the low softness of the softness and the unique properties that cannot be replaced by other transferable foaming materials, the method of preparing soft polyurethane polyurethane with low recovery from the cyanide is based on fat_and/or fat. The ring-like test _ soft lie low-rebound foam provides a good solution to this need. Due to the low activity of aliphatic and cycloaliphatic isocyanide, they are rarely used in the preparation of polyamidoxime in the curing catalyst, more active polyisocyanate composition, and high activity polyol. The '_Εσ substance or other production method' has been developed to make a less-experimental synthesis method to prepare an aliphatic money ring with a practical physical property. U.S. Patent No. π US 2 _ 〇 ii 〇 〇 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 公开 , , , , , , , , , , , , The Wei_index exceeds 9〇 and the 0-alcohol mixture reacts with the polyisocyanate compound. The polyol mixture is composed of a polyol (4) and a polyol (8), a monohydric alcohol (9) and an optional polyol (6). The polyol (8) is a poly-alcohol having an average of 2 to 3 meridons and a base value of hydrazine/g.通 贱 贱 魏 魏 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Alcohol, the base value is _mgK〇H/g; alcohol, at most, the whole multi----------------------------------------------------------------------------

Equivalent (four) Ergu did not target these occupations and lipids _ two different test S and XDI Ο ❹ two different veins "connected to the benzene ring material (four) cyanide _, according to the method in the preparation of the wind quilting Make (4) Shilan scales detailed. In fact, it is still difficult to apply the disclosed polyol mixture (see Comparative Example C1_C4 below). Promulgated to M〇rim〇t on September 15, 1992. U.S. Patent No. 5, _7, et al., discloses the use of an aliphatic poly-wei. The Saki method consists of f C2-CH) thief's gorge or two-slit olefins are under the age, allowing the secret group to react with 0.4-5 times of isocyanate equivalents of water. The prepolymer is a fat-cyanate-terminated pre-mix obtained by addition polymerization, which is obtained by an average molecular weight of a polyol of the group -5 - 0 and (4) 6 times of a secret equivalent of an aliphatic polyisocyanate. The activity of the aliphatic isocyanic acid vinegar is generally lower than that of the aromatic oleic acid vinegar. When the aliphatic oleic acid vinegar becomes a prepolymer, the molecular movement Itit 纟 decreases, resulting in a further decrease in activity. Due to the reduced activity and high viscosity of the obtained prepolymer, the method of Morimoto et al. cannot be used to prepare a polylactide foam having a density of less than 8 〇 kg/m ^ 3 and cannot be used for the preparation of soft f-polyamide. Rebound foam. U.S. Patent No. 6,2,555 issued to Du Prez et al., issued June 5, 001, which describes the use of micro- or non-porous, light-stable, with a degree of v to 900 kg/m3 (56 pcf, broken/cubic feet). Elastic, healthy or semi-four (four) polyammonia _ anti-missing difficult (ship) method. The financing method includes:: selected from the group consisting of organic wrong, organic and organotin catalysts, the content of the 4% heavy isophora S isocyanate vinegar trimer/monomer mixture and sulphuric acid vinegar activity The reaction of the composition. 8 201037000 The isocyanate-reactive composition comprises (1) a low-unsaturated polyether polyol, as described in U.S. Patent No. 5,470,813 and U.S. Patent No. 5,498,583, which is incorporated by DMC (double metal cyanide) catalyst. 2-4, an average equivalent weight of 800-4,000 g/mob (2) of about 3 to about 20% by weight of at least one chain extender having only an aliphatic or alicyclic OH group as a functional group and having a functionality of 2, The equivalent weight is up to 80 g/m〇l, the first stage hydroxyl group content is at least 50% and (3) about 2 to about 10% by weight of the cocatalyst system, comprising 2-3 functional aliphatic NH, NH2 or 〇H groups And a catalyst having an equivalent weight of at most 150 g/mol 'at least one of the catalysts is a second-stage amine group (also known as a secondary amino group) or a first-stage amine group (primary amin〇gr〇up) Also known as primary amine groups' and at least one of the catalysts is an amine initiated catalyst. The invention provides a method of preparing an invariable xanthan polyurethane material, however it can only be used in reaction injection molding and compact molded part production. A method of preparing an alicyclic polyisocyanate-based polyurethane foam is disclosed in Japanese Patent Application No. JP-A-2003-261643A, the disclosure of which is incorporated herein by reference. Novel (more expensive and limitedly produced) norbornane diisocyanate (2,5(2,6)-bis(isocyanatomethyl)bicyclo[2.2.1] heptane (produced by Mitsui-Takeda Chemicals Inc. The "Cosmonate NBDI" quotient reacts with polyhydric hydrazine and a large amount of UV stabilizer to obtain a polyurethane foam that is almost indistinct yellow. There is no needle riding 彳! The description of the mechanical properties of the hair, there is no real _ to illustrate its softness Use of a low-rebound polyurethane foam in the preparation of a low-rebound polyurethane foam. The Japanese Patent Application jp 257, published by Kurashiki Boseki Corp., published on September 28, 2006, discloses an almost constant yellow polyglycol for the preparation of clothes, health care or cosmetics. A method of foaming the polyurethane foam by reacting a poly-alcohol with a polyisocyanuric brewing composition comprising (isophorone diisocyanate ( Surface) and / or (four) trimer or its derivatives): (trimethylene and / or cholesteryl derivatives of hexamethylene diiso- acetoacetate _1) mass 到 到 (70-30): ( A mixture of 30-70) also explains that the resulting foam exhibits improved foam hardness and low fishing compression deformation due to increased cross-linking. For the polyisocyanate vinegar composition in the soft low rebound elastic sewing _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Difficulties in processing due to scales. In addition, 9 201037000 The reduction in isocyanate content (NCO%) in such trimers and derivatives is much higher than the use of aliphatic or cycloaliphatic diisocyanates compared to the use of diisocyanates alone. The isocyanate mixture to obtain any specified isocyanate index increases the cost of these polyurethane foams. The added isocyanate also means an increase in the hard segment of the polymer, which leads to accelerated deterioration. March 21, 2001, INOAC MTP Japanese Patent Application No. 2001-72738A to KK discloses a polyurethane foam having excellent water resistance and no discoloration under sunlight, by the presence of an alkali metal salt of a catalyst selected from diazocycloalkene or a phenyl salt thereof and a weak acid. The aliphatic diisocyanate is reacted with a polyol having an ethylene oxide content of less than 18 parts by weight based on 1 part by weight of the total Q polyol alkylene oxide. Is 1,8-diazabicyclo-(5,4,0)H —

Carbene-5 (DBU), a phenyl salt of DBU, 1,5-diazabicyclo-(4,3,0)nonene-5 (DBN), a stupid base of DBN. Since these non-isocyanate-reactive diazabicycloolefins have a low boiling point, such as a boiling point of DBU of only 1 〇〇〇c at a pressure of 532 Pa, the catalyst will remain in the finished foam and gradually discharge from the foam. . Thus, the prepared polyurethane foam has a large amount of v〇c emissions. Japanese Patent Application No. 2003-012756A to INOAC MTP K.K. discloses a nearly invariant yellow poly-foam prepared by reacting an alicyclic diisocyanate with an amine-terminated polyol. The towel also describes these polyols which consist solely of oxime units. These amine-terminated polypropylene oxides are expensive and limited in supply, making it difficult to obtain useful moon-capped polypropylene oxide molecules to prepare flexible polyurethane low resilience foams. = This requires the development of a soft polyurethane low resilience foam, which is readily available commercially by the use of aliphatic and/or alicyclic diisocyanate. The obtained polyphenol reaction was made to produce 'this kind of foam can be produced in the production of the money polyurethane ship, without further changes to the equipment. SUMMARY OF THE INVENTION The present invention is directed to a method for providing (4) a viscous polyaluminum sulphide low-foaming foaming county. Even 201037000 receives the reaction product of the isocyanate component of the aromatic isocyanate on the stupid ring. Another object of the present invention is to provide a novel iso-Iester active component composition which is suitable for aromatic isocyanates which are not directly bonded to the benzene ring with aliphatic and/or alicyclic isocyanate and/or isocyanate groups. , and one or more catalysts, water 'surfactant as a cell regulator' and other additives are reacted to prepare a flexible polyurethane low resilience foam. Another object of the present invention is to provide a process for preparing an invariable yellow flexible polyurethane low resilience foam. Another object of the present invention is to provide a one-step process for preparing a low density non-yellow polyurethane low resilience foam.另一 Another object of the present invention is to provide a process for preparing a molded flexible polyurethane low resilience foam. Another object of the present invention is to provide a process for producing a flexible polyurethane low resilience foam which does not produce a toxic aromatic amine when degraded in a hot or humid environment. Another object of the present invention is to provide a process for preparing a flexible polyurethane low resilience foam which is catalyzed by a non-volatile catalyst to release a relatively small amount of VOC. Another object of the present invention is to provide a method for preparing a polyurethane foam low resilience foam having improved mechanical properties, particularly tearing, at an isocyanic brewing index of 75 de. ^ Crack strength 'tensile strength and elongation. Another object of the present invention is to provide - a small f-collecting low-transfer, a low-rebounding foaming _ _ 弹 弹 and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The hardness changes while having high gas permeability. The present invention is directed to a method of providing a fine regenerable biological source polyol and a primer-degradable polyurethane low resilience foam. Another object of the present invention is to provide a new financially-reversed low-rebound foam which can be used in the fields of bras, shoulder blades, mattresses, pillows, furniture, and car seat. - 201037000 Another objective of this month is to provide polyurethane foams with less or no conventional and/or active tertiary amine (also known as tertiary amine) catalysts to reduce the interior of the car - The method of atomization. This Maoyue know-how program discloses a kind of soft polyurethane low resilience foam. The soft polyurethane low resilience foam of the present invention comprises the reaction product of the following: a "Cyanide S?Sg component, the isocyanate component is substantially free of isocyanate groups and is directly attached to the benzene ring. Aromatic isocyanate; 〇 _ _ _ _ 杂 杂 旨 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰 舰2·6·6.5 isocyanate reactive groups, more preferably 2.65-6.0 isocyanate reactive groups, most preferably 2'7 5.5 isocyanate active groups, base equivalent weight less than 800, preferably 80-800, more It is preferably 1〇〇_7〇〇, most preferably 110_600, and has a base value of more than 7〇mgKOH/g, preferably 7〇-7〇〇mg KOH/g, more preferably 8〇_56〇mg K〇 H/g, most preferably ton of milk, (b2) second isocyanate active component 'average hydroxy functionality of less than 6.0, preferably 1.8-6.0, more preferably 1.85-4.5, hydroxyl equivalent of 600-6,000, preferably It is 7〇〇-5,000, more preferably ❹800-4,500′, the base value is 9-94 mg KOH/g, preferably 19-80 mg KOH/g, more preferably 14^70 mg K〇H/g' first Hydroxyl content At least 3 parts by weight, preferably at least 4 parts by weight, more preferably at least 51 parts by weight 'based on 100 parts by weight of the total weight of the second isocyanate active component hydroxyl group, wherein the first isocyanate active component is used 20 to 90 parts by weight, preferably 20 to 70 parts by weight 'the second isocyanate-reactive component is used in an amount of 10 to 80 parts by weight, preferably 30 to 80 parts by weight, to 10 parts by weight of the isocyanate-active mixture Catalyzed "ik species or a plurality of materials selected from the following: water, surfactants, crosslinking agents and additives; 12 201037000 The optional crosslinking agent has a weight average molecular weight of 60-420 g/ M〇l and having at least two isocyanate reactive functional groups; wherein, if used, the crosslinking agent is used in an amount of from 2 to 15 parts by weight, most preferably from 1.2 to 12 parts by weight, based on 1 part by weight of the isocyanate The foam is prepared at an isocyanate index of 75 to 105. Optionally, the isocyanate active component further comprises 0.4 parts by weight (in 1 part by weight of the isocyanate active component). Polymer polyol The polymer polyol has a solid content of 5 to 55 parts by weight based on 1 part by weight of the polymer polyol, and a hydroxyl value of i5 to 50 mgKOH/g.

The isocyanate-reactive component may comprise 〇_5. 〇 by weight, preferably 〇_3 5 parts by weight (based on 1 gram by weight of the total foam mass) of polyglycidone (4) as an open cell, The polyglycolide (IV) has a nominal hydroxyl functionality of 1 and a weight average molecular weight of 800_8,500 g/m〇1. The invention of the present invention relates to a method for preparing a soft job with a forwarding seam. The method of the invention comprises preparing a foam preparation, the agent comprising an isocyanide-active mixture, substantially free of isocyanic acid, direct-connected, and the like, a water, a catalyst, The blister formula towel urethane bond and the foam stabilizes the face female agent, and then foams, and then the resulting hair is made into a scent. The heterochiral mixture is selected from the above-described isogasoic acid active mixture.

Another embodiment of the invention relates to a method by employing a body. One-Step Preparation of Soft Polyurethane Low Resilience Foam Another embodiment of the present invention relates to a flexible polyurethane low resilience foam prepared by the above method and having a ruthenium (four) kg/m3. The invention further discloses a method for preparing a tantalum mold "ammonia" foam. = Sending and removing her rebound foam preparation, no special changes are required to the existing negotiable equipment. The isocyanide active composition of the present invention has a large density and hardness range. _ Soft «Ammonia vinegar low back 13 201037000 Elastomeric foam preparation provides a larger range of formulation components. [Embodiment] The present invention relates to a novel soft polyurethane low resilience foam which is obtained by directly isocyanate isocyanate which is substantially free of isocyanate and is directly attached to a benzene ring. The active component and the catalyst, the water, the surface bioassay, the crosslinking agent and the additive are reacted to prepare. The isocyanate red component is selected from one or more of the following isocyanates: aliphatic isocyanates, alicyclic isocyanates, and aromatic isocyanates in which the isocyanate groups are not directly attached to the acyclic ring. When using aliphatic and/or alicyclic and/or isocyanate groups which are not directly bonded to the benzene ring (IV), the present invention provides excellent curing performance and low foaming body bombs. Rebound foam. Further, the present invention discloses a one-step process for preparing a soft polyurethane low resilience foam having a wide hardness range without using other blowing agents other than water. The present invention discloses a novel aliphatic or alicyclic or isocyanate group which is not directly bonded to the aromatic isocyanate-based polyurethane material. The polyurethane material of the invention is suitable for preparing flexible polyurethane low resilience foam, and the soft polyurethane low resilience foam can be used as a material for a bra pad and a shoulder pad, and is also suitable for a mattress, a pillow, a mattress, a carpet sheet. And car seat cushions. It is especially suitable for bed mats and pillows. In the one-step method of the present invention, the formulation material is simultaneously injected into the mixing head, and then poured into the mold or transported to the foaming reaction to proceed very quickly. The foam foam which rises according to the catalyst used was substantially completely cured in a minute, and then the resulting foam was post-cured for 24 hours to obtain its final properties. In the process of the present invention, the reaction composition comprises an isocyanate component, an isocyanate-reactive component, a ruthenium hydride, a surfactant, water as a foaming agent, and an additive known per se. Other additives such as pigments/dyes, antioxidants, UV absorbers, flame retardants, fillers, recycled foam powders, stabilizers, antibacterial compounds, and antistatic agents may also be used as needed. The isocyanates include aliphatic and/or alicyclic and/or isocyanate groups which are not directly bonded to the benzene% aromatic diisocyanate monomer, or aliphatic and/or cycloaliphatic and/or isocyanate groups are not straight 14 201037000 a blend of an aromatic diisocyanate monomer and a trimer attached to a benzene ring, the trimer being an aliphatic or alicyclic or isocyanide directly bonded to the aromatic axis of the benzene ring The product of the homopolymeric acid vinegar 'trimerization reaction, the NCO content in the blend is 20.5-50.0 parts by weight (based on isocyanic acid. = component weight percent total isocyanide), the calculated functionality is 2_3. The aliphatic or cycloaliphatic or isocyanate S group; the aromatic isocyanic acid vine directly attached to the benzene ring may be at least one selected from the group consisting of: hexamethylene diisocyanide Yi, hexamethylene triisocyanate, double-ring Gengyuan triisocyanide, ten-burn diisocyanide, ten-burning tri-iso- cyanide _, different phorrene diiso-sour vinegar, dicyclohexyl Burned diisocyanate, methylcyclohexanyl diisocyanate, dimethylcyclohexane-isocyanate, benzodiamethylene diisocyanate, tetradecylbenzene dimethylene diiso Vinegar, its dimers and trimers. These isocyanate (tetra) towels are preferably hexamethylene diisocyanate and isophorone diisocyanate. In addition to the aliphatic and/or alicyclic and/or isocyanate groups, which are not directly attached to the aromatic isocyanate SaJ on the benzene ring and dimerized in vitro, the isocyanate-stirring component is optionally further Contains up to 35〇/. Weight (based on the total weight of the isocyanide component), an aromatic isocyanate containing 2-4 isocyanate functional groups or an aliphatic or alicyclic or isocyanate group not directly attached to the benzene ring Polymer. The isocyanic acid is used in an amount such that the isocyanic acid has an index of about 65 to about 11 Torr, preferably about _70 to 105, more preferably about 75 to 105. The isocyanate-reactive mixture comprises: (bl) a first isocyanate-reactive component having at least 26 isocyanic acid-reactive groups, preferably from 2.6 to 6.5 isocyanate-stabilizing groups More preferably, it is 2.65_6 异 异 异 异 活 、 live, most preferably 2.7·5.5 isocyanide _ oshi County, the secret equivalent is less than _, preferably 80-800, more preferably 100-700, most preferably 11〇_6〇〇, the hydroxyl value is higher than 7〇KOH/g, preferably 70-700 mg KOH/g, more preferably 8〇_56〇mg K〇H/g, most preferably 90-510 Mg KOH / g, (b2) the first iso-acid component 'the average light-weight functionality of the isocyanic acid-reactive component 15 201037000 is less than 6_0, preferably 1.8-6.0, more preferably 1.85-4.5, The hydroxyl equivalent is from 600 to 6,000, preferably from 700 to 5,000, more preferably from 800 to 4,500, and the hydroxyl value is from 9 to 94 mg KOH/g, preferably from 19 to 80 mgKOH/g, more preferably from 14 to 70 mgKOH/g' The primary hydroxyl group content is at least 30 parts by weight, preferably at least 40 parts by weight, more preferably at least 51 parts by weight, based on 100 parts by weight of the total weight of the second isocyanate active component hydroxyl group, wherein The isocyanate active component is used in an amount of 20 to 90 parts by weight, preferably 20 to 70 parts by weight, and the second isocyanate active component is used in an amount of 1 〇 8 〇 by weight, preferably 3 〇 8 〇. The parts by weight are all based on 100 parts by weight of the isocyanate-reactive mixture; and Ο an optional cross-linking agent having a weight average molecular weight of from 60 to 420 g/mol, having at least two isocyanate-reactive functional groups, wherein if used, the cross-linking The agent is used in an amount of from 2 to 15 parts by weight, preferably from 0 5 to 15 parts by weight, more preferably from 0.5 to 12 parts by weight, most preferably from 1.2 to 12 parts by weight, based on 100 parts by weight of the isocyanuric acid-active mixture. Optionally, the isocyanate-reactive component may further comprise 〇_5 〇 by weight, preferably 0-40 parts by weight (based on 100 parts by weight of the isocyanate active component) of a polymer polyol, the solid content of the polymer polyol It is 5 to 55 parts by weight, more preferably 10 to 45 parts by weight (based on 1 part by weight of the polymer polyol), and has a hydroxyl value of 15 to 50 mgKOH/g.

Q optionally 'the isocyanate-reactive component may comprise 0-5.0 parts by weight, preferably 〇-3.5 parts by weight (based on the total mass of the foam of the ruthenium weight), the polyglycolide (b3) as a cell opener, The polyglycidil has a nominal warp functionality of 1, and a weight average molecular weight of 400_9,600 g/md, preferably 6〇〇9 〇〇〇g/m〇l, more preferably 800-8,500 g/moL· The isocyanate-reactive component of the present invention includes a large amount of a compound. Good examples of these include, but are not limited to, the following: (4) polyquaternary polyols, including epoxy-based hydrocarbon adducts of polyalkylene hydrocarbons; 0) poly(tetradecyl ether) glycol and (c) poly (Sanya Mercapto ether) diol. Examples of the above alkylene oxide adducts of polyhydroxyalkanes include alkylene oxide adducts of the following materials: ethylene glycol, diethylene glycol, propylene glycol, propylene glycol, u-propylene glycol, butylene glycol, 16 201037000 戍Glycol, glycerol, tri-glycidyl-sinter adduct, tri-methyl-propan-single-single-propyl bond, ^_three-methyl-ethyl bromide, 1,1,1-tri-zhao-di-propyl, 1,2, 3-trimethylpyrene, glycerin, pentaerythritol, poly-caprolactone, xylitol, arabitol, sorbitol and mannitol. Among the epoxy burning hydrocarbons used, the most preferred ones are epoxy bake, propylene bromide and butyl bromide. The poly(10) multicapsules from which this is initiated are often prepared by anionic polymerization in which the cyclooxygen is mixed with an initiator compound and an inert catalyst such as a hydroxide or some organic amine. The use of these strong hybrids to test the polymerization will result in an increase in the degree of recombination and an average of less than the average amount of the poly-polyol. These age-old components have the formation of amino decanoate during the reaction of the polyol with the 0-isocyanate. The double metal cyanide (DMC) integrase is a well known epoxy burning hydrocarbon polymerization catalyst. These active catalysts make it possible to prepare poly-polyols with very low unsaturation compared to the use of highly catalyzed (iv)-like 7-merol. The content of unsaturated components is as low as 〇 咖 2 coffee. Your poly-alcohol can be prepared using DMC catalyst. The DMC-based poly-polyol, such as the product described in EP0894108B1 issued on July 7th, can be used to prepare soft polyurethane slow rebound foam with reduced odor and improved mechanical properties. A preferred poly-polyol in the present invention. In fact, any bismuth material with active hydrogen (determined by Zerewitin ff (Zelvidinov) test) can be used as a component of poly-alcohol. For example, bribes? “Multiple turns are known and available. In the present invention, the first isocyanic acid-active component (b1) must have at least 26 octa-acidic active groups, preferably 2.6-6.5 isocyanide-active groups, more preferably 2 65. Efficient ^ Active base, the best 2.7 · 5.5 money acid riding to meet the degree of crosslinking required to prepare low foaming 'In this range of functional values, in order to achieve the required reactivity, recording equivalent: low to_. Too high a base equivalent will make the polyol reactivity too low, so that the isocyanic reaction which cannot be reacted is not turned into the present invention. If the recording equivalent is too low, there is no suitable polymer molecular chain required for low rebound foam physical properties. A preferred base equivalent range is 17 201037000 80-800, a more preferred hydroxyl equivalent range is 1〇〇_7〇〇, and a most preferred hydroxyl equivalent range is 110-600. (4) Towels, the green silk must be less than 6.0 in order to meet the demand for low resilience foam properties. Too high a number of functional groups are required to match a large hydroxyl equivalent, so that the reactivity is too low to be suitable for use in the present invention. Conversely, too low a functional base greatly detracts from the physical properties of the foam, particularly tensile strength and tear strength. A preferred hydroxyl functional group number is from 1.8 to 6.0, and a more preferred number of hydroxyl functional groups is from 185 to 45. The second isocyanic acid S is an active component (b2) towel, and the fineness of the equivalent ship is __6, _, and the fineness of the preferred one is .5, _, and the most preferable range is _·4, ·. Too high a ugly base equivalent will result in a low reactivity and it is not suitable for use in the present invention. Too low a base equivalent will cause the foam to have a parental density of more than 13⁄4' to make the resulting impurities too hard' and to increase the relative hardness of the foam as the temperature changes. In the second isocyanate-reactive component (b2), in order to match the preferred number of hydroxyl functional groups and the base equivalent range, it is necessary to use a highly reactive first-stage woven end-capped polyol to satisfy the low reactivity of the present invention. Cyanide preparation of the gauze foaming_required, the selected (iv) second isocyanate active component (4) must contain at least 3 parts by weight, preferably at least 4 parts by weight, more preferably less than 51 parts by weight of the first - The stage capping is based on the basis weight of the second isocyanate-active component (iv). Another type of polyol which can be used in the present invention is the above poly(tetramethylene bond) diol. Poly(tetra)methylene is a ring-opening polymerization product of shii) tetrahydrotetrahydro). Poly(tetramethylene diol) is a polypoly diol. It is also known as PTMEG or polytetrahydrofuran and various trade names such as "Dings, and 'TdyTHF". It passes tetrahydrogen, _ 催Prepared. The obtained polymer is of a suitable size, usually having a number average molecular weight of 25 〇·3, _ g/md. This quaternary ψ ) 二醇 二醇 骑 骑 骑 骑 某 某 。 。 。 。 。 。 。. In the present invention, the poly(tetramethylene ether) dig| having an average molecular weight of __3, _, more preferably i, or 2 is a special poly(tetramethylene fluorene) diol. 18 201037000 The third type of polyol which can be used in the present invention is prepared by poly (tri-?? di-oxo-polymerization-initiated polycondensation reaction initiated by u-propanediol, such as 2〇〇6 Β 醉 drunk) new i eve 7,074,968 = 获 获 获, 3_ propylene glycol can be used as a feed in the production process to prepare a renewable, bio-transformable poly(tri-f-produced ether) diol with a first-order permeation and a low Marry ▲ — (Dimethylene must be point and compliant. Poly (trimethylene ether = weight average molecular weight for purchase, _, _ is 丨, 纲·3, _ surface _ rebound foam. Use this The other motive of poly(trimide f_) diol is derived from the fact that it can be used to prepare biodegradable soft polyurethane. Elastomeric foam. „Multiple _ preferably used in the present invention include poly(epoxy succinyl epoxide epoxide. When used, _ ethane can be mixed into the polymer chain in any way. The auxiliary part chain, the end chain part or randomly distributed along the polyol bond, selected as the poly(epoxy Ethylene-glycidyl) diol at the epoxy end. The cross-linking 且' 011 side or postal basis, more specifically aliphatic or cycloaliphatic 〇H, NH^ or 丽 2 group, weight average molecular weight of 4〇_64〇, preferably (9)-like ca 〇ι, having at least two 〇 activities Functionality, wherein, if money, the crosslinking agent is used in an amount of 2 15 preferably 0.5-15, more preferably 〇5_12, most preferably i 2-i2 parts by weight 'in terms of 1 part by weight of the isocyanate reactive mixture Typical examples of the combination of = ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, number average knife ^ lower than _ polyethylene glycol, propylene glycol, propylene glycol, molecular weight is lower than Polypropanol butanol, pentanediol, hexanediol, trimethylacetate, hydrazine] trimethyl propyl hydride, jl2'3 _ dipyridyl hexyl, glycerin, poly (epoxy Propylene-epoxyethane), poly(epoxypropane), poly(% oxyethylene), 2-methyl-u-propylene glycol, 3-methyl-pentanediol, ruthenium hexanediol, Xinyi SJ, 1,4-1⁄4 hexamethylene dimethanol, ethylenediamine, monoethanolamine, diethanolamine, 2-amino-2-methylpropanol, N-methylethyl _, isophora diamine and a hydrazine. A preferred example of the cross-linking unit is a single 201037000 ethanolamine and - Ethanolamine 4 requires a mixture of several crosslinkers. - depending on the hardness of the foam, it can be added to the mixture of the two. The stable dispersed polymer polyol component can be any polyepoxy-fired hydrocarbon polyol. A typical example of a polymerized hydrophobically dispersed polymer polyol having dispersed-infused monomers includes polyepoxy. a hydrocarbon-burning polyol in which poly(styrene-propylene) spears/polyureas are dispersed. The stable dispersed polymer can be purchased from several companies, including .y (, er) °° is called Polymer P〇lyol (polymer polyol),), BASF (BASF X trade name Graft P〇ly〇i (grafted polyol) "), D〇w (trade name &quot ;c叩 kiss·p〇ly〇1 (copolyester polyol)") and M0BAY (trade name ',TM PolyoKPHD polyol), >Bayer, Na and ¥ products in accordance with US Patent 4,272,619, USA The method described in the patents 4, _, 935 and U.S. Patent 5, 4, 957, the dispersion of poly(styrene-propenonitrile) in a polyol, and the dispersion of a polymer polyol. Examples are listed in Table 1 below:

Bayer "P〇lymer p〇iyol (Polymer Polyol) HS-100 Niax E694 BASF "Graft Polyol

Pluracol 1103

Voranol 3943 E9232

Dow "Copolymer Poly〇l (copolymer polyol),

Mobay "PHD Poly〇l(PHD Polyol)" I. Stabilize the dispersed polyhydric alcohol according to 〇ertd in “p〇丨__ Hanm〇b-ethane Handbook, g. 〇e Thief isbn 0-02-948920-2, Hanser Publisher, 1985) The polymer M alcohol shot can be used as a dispersion matrix for this polymer. This stable dispersion of polymer multi-activity depends mainly on The stable dispersion of the (tetra) complex polyol during the preparation of the polyol to activate the base polyol. Due to the present day, the teacher of the aliphatic and / 20 201037000 or alicyclic and / or isocyanate is not directly connected The aromatic polyisotopic surface on the stupid ring is less active, preferably having a nominal functionality of 2.4-6 (more preferably 2.4-5, 6, most preferably 2·4-5.4), and an equivalent weight of 8〇0-2. _ (more preferably it 8 〇 (M, _, most preferably [, 〇 _, _) surface, epoxy Ethylene content of 4-28 (preferably 4-24)% by weight (based on the weight of the base polyol) Matrix polyol. Depending on the need of the low foaming, the heterogeneous mixture may be added to open the pores to improve the camouflage contraction. Typical examples of open-hole lions include: stable dispersion Polymerization solution of 7L alcohol, epoxy E6 content of more than 鄕 parts by weight of poly (Wei E-steam propylene oxide) copolymer, weight average molecular weight of more than 8 〇〇 poly (epoxybutadiene propylene oxide) copolymer , weight average 聚 molecular 罝 more than 600 polyethylene glycol, weight average molecular weight of more than 4 〇〇 polyepoxy; micro-powder powder (fiimed siHca) particle size less than 150 microns, particle size less than 2 〇〇 micron a polytetrafluoroethylene resin powder, an aliphatic carboxylic acid and an alkali metal or alkaline earth metal salt thereof, an alicyclic carboxylic acid and an alkali metal or alkaline earth metal salt thereof, an aliphatic alkane, an alicyclic alkane, and a dimethyl hydrazine oil. The pore component is a stably dispersed polymer polyol, a poly(ethylene oxide-propylene oxide) copolymer having an ethylene oxide content of more than 5% by weight, and a poly(butylene oxide) having a weight average molecular weight of more than 800. a calcined-glycidide copolymer and a polypropylene oxide having a weight average molecular weight of more than 400. The preferred cell opener component is usually used in an amount of 〇5〇2 parts by weight, preferably 0.5-10 parts by weight, to 10 parts by weight of the total mass of the foam. Most preferably, the pore former component is a polypropylene oxide having a weight average molecular weight of more than 400. The name of the polypropylene oxide opener is 丨, the weight average molecular weight is 400-9, 600 g/mo, preferably 600-9,000 g/mo, more preferably 800-8,500 g/m〇, The polypropylene oxide cell opener is usually used in an amount of 〇_5 〇 by weight, preferably 0-3.5 parts by weight (based on 1 gram by weight of the total mass of the foam). If necessary, several openings may be used. Mixture of Agents A number of polyurethane catalyst commercial products are useful in the preparation of the flexible polyurethane low resilience foams of the present invention. The catalyst is usually used in an amount of from 0.05 to 2.0 php (parts by weight per 1 part by weight of the polyol). Representative catalysts include: (1) a tertiary amine such as bis(2,2,dimethylamino)ethyl ether, bis(dimethylaminoethyl)ether N-methyl morpholine, N -ethyl?#(N-ethyl morpholine), N,N-dimethylbenzylamine, n,N-dimethylethanolamine, ν,Ν,Ν',Ν,-tetramethyl-丨, 3-butyl Diamine, quinone 21 201037000 bisdipropylene triamine, trimethylamine, triethylamine, triethanolamine, triethylenediamine and acridine; (2) diazabicycloalkenyls such as hydrazine, 5-diazo Bicyclo-(4,3,〇)decene-5,1,8-diazabicyclo-(5,4,0) eleven-s-7, 1,8-diazabicyclo-(5,3,anthracene) An organic salt of -7,1,5 diazabicyclo-(5,4,0)undecene-5,1,4diazabicyclo-(3,3,0)octene-4 and diazabicycloalkene Phenolate; (3) strong bases such as alkali and alkaline earth metal alkoxides, hydroxides and phenates; (4) acidic acid salts of strong acids such as gasified tin, gasified iron, gasification, chlorination (5) chelates of various metals; such as the use of acetamidine acetone, methacrylate, difluoroethylene, propylene, ethyl acetate, jujube, and glutinous J-2 - retardate, acetamidine Obtained by ketimine, diethyl acetonide _ alkylene diimide and salicylaldimine and various metals such as bismuth, magnesium, zinc, lead, titanium, zirconium, tin, antimony, molybdenum, manganese, iron, cobalt and nickel Those (6) alkoxides and phenates of various metals such as Sn(0R)4, Sn(0R)2, Ti(〇R)4 and A1(〇R)3, wherein R is an alkyl group or a phenyl group, and an alkoxide a reaction product with a carboxylic acid, a diketone and a 2-(N,N-:alkylamino)alkanol, such as a titanium chelate obtained by such or a similar procedure; (7) an organic acid with various metals such as an alkali metal and an alkaline earth metal Salts such as calcium hexanoate, stannous acetate, stannous octoate and stannous oleate; (8) tetravalent tin 'organic metal derivatives of trivalent and pentavalent arsenic, antimony and bismuth, and metal carbonyls of iron and cobalt Compound. The above catalyst A was found to be particularly useful for the preparation of the flexible polyurethane low resilience foam of the present invention. Preferred organotin compounds are diacids of dialkyltin, such as dibutyltin diacetate, dibutyltin dilaurate, dimethyltin dilaurate, dibutyltin maleate, diacetic acid-hetero and diammonium. Xin Si. Other sometimes, the crane compound is a silky tris-based tin, a di tin oxide, a di-silica di-n- tin, a di-vaporized two-filament tin, and a dithiol di-tin-tin. Examples of such compounds include trimethyltin hydroxide, tributyltin hydroxide, dioctyltin oxychloride, dibutyl sulphide, dioxacin oxide, dilauryl tin oxide, dibutyltin dihydrate, dioxane = octyl Tin, dibutyltin dithiolate and dimethyltin dithiolate. The use of the organotin compound is generally about 5% by weight of the active mixture (b) of the isocyanate group, preferably about 0.55 °/. weight. , ' ._ Another - can be used in this issue compared to "Ammonia s low to turn Wei Weicai gamma ^ is a Bronsted acid and various metal or soil test metal salts. It was found that WeiNA or carbonate scales 22 201037000 can be used to prepare the flexible polyurethane low resilience foam of the present invention. The alkali metal or alkaline earth metal benzoate salt is generally used in an amount of from about 0.01 to about 8% by weight of the isocyanate-reactive mixture (b), preferably from about 0.1 to about 0.6% by weight. One or more surfactants can also be used in the foaming composition. The surfactant reduces the surface tension of the body, promotes nucleation of the bubbles, stabilizes the foam and emulsifies the incompatible components. The surfactant commonly used in polyurethane foams is a polyphthalocene-polyalkylene oxide copolymer, usually used in an amount of from about 0.2 to about 3% by weight, preferably from about 0.6 to about 2.5% by weight, based on the total isocyanate reactive mixture. meter. Conventional surfactants for the preparation of aromatic diisocyanate-based polyurethane foams can also be used in the present invention. 0.5 to 6.5 parts by weight (based on 100 parts by weight of the isocyanate reactive mixture) of water is used to generate carbon dioxide by reaction with the isocyanate as a foaming agent for the foaming reaction. In addition, a combination of water and other known auxiliary blowing agents can be used if desired. It is particularly preferable to directly use carbon dioxide (gas or liquid) as an auxiliary blowing agent other than water. It is also found that the gas pressure is adjusted during the foaming reaction and/or the mechanical foaming technique is used, as described in US Pat. No. 5,194,453, issued on Dec. 9, 1993, and U.S. Patent No. 5,194,453, issued on Mar. Change the foam density. 〇 Other additives may optionally be incorporated into the foaming compositions of the present invention. These other additives include, but are not limited to, pigments, antioxidants, UV absorbers, UV stabilizers, flame retardants, fillers, recycled hair/bags, stabilizers, antimicrobial compounds, and antistatic agents. Such an additive should not adversely affect the performance of the soft water vapor S low resilience foam. The soft polyurethane low resilience foam of the present invention can be prepared by a molding method and/or a slabstock method. The plastic molding method is a method in which an active mixture is injected, foamed, and molded in a closed mold. The block method means that the active mixture is foamed on a conveyor belt and in an open system. The soft polyurethane low resilience foam of the present invention has a density ranging from about 10 to about 2 〇〇 kg/m ^ 3 , preferably about 16 ′ to about 160 kg / m ^ 3 , according to the method of melon K64 ( (proofing) determine. 23 201037000 The soft polyurethane low resilience foam of the present invention has a falling ball resilience of not more than 2% by weight, preferably not more than 15%, determined according to the JIS K6400 method (1997 edition).

The soft polyurethane self-propelled gauze foam of the present invention has a hardness as understood in the art of soft (tetra) ammonia bubble. In one embodiment, the soft f-ammonia s of the present invention has a low resilience foam having a hardness of less than 15 GN/314em2. In another-real financial case, the present invention (4) is a hard-brown rebounding body of hard lining 6·12_31 yang 2 or 6 marital/314em2. The hardness of the nuclear forged f polyurethane low resilience foam can be adjusted by adjusting the ratio between the active component (10) of the isocyanate g and the active component (b2) of the second isocyanate. Adjusted by cyanate vinegar index. Using a second amount of the second heterogeneous 6-components 2) with a different amount of no-bonds of not more than 8 ,, the flexible polyurethane low resilience foam of the present invention can be adjusted to an IFD 25% hardness as low as 6 N/314 cm 2 . . The IFC 25% hardness of the soft polyurethane low resilience foam of the present invention can be adjusted up to i2 〇 N / 3 14 cm 2 using a larger amount of the first isocyanate active component (bl) in combination with an isocyanate index of not less than 95. The IFD 25% hardness was determined according to the JISK6400 method (1997 edition). In general, soft polyurethane low resilience foams for pillows and mattresses require an IFD 25% hardness between i2N/314cm2 and 24N/314cm2 for both load bearing and comfort. For applications such as sports mats or helmets, high hardness is required to achieve shock absorption and impact resistance. detailed description

In the following detailed description, the symbols, terms and abbreviations used will have the following definitions: ISO 1 is a different lactic acid vinegar from the Bayer AG (Bayer). ISO 2 is a 50% replacement of a mixture of Desmodur I and 50% by weight of hexamethylene diisocyanate trimer (Desmodur N3600 commercial product), both from Bayer AG ( Bayer). ISO 3 is a composition of phthalic acid disulfide S which is 80% by weight of 2,4-toluene diisocyanate S and 20% by weight of 2,6-toluene diisocyanate' from Bayer AG (Bayer). 24 201037000 ISO 4 is hexamethylene diisocyanate, a product of Desmodur® from Bayer AG (Bayer). ISO 5 is a hexamethylene diisocyanate trimer prepared by trimerization of hexamethylene diisocyanate. Desmocjur N3600 from Bayer AG (Bayer). ISO 6 is benzene dimethylene diisocyanate, available from Takesu 5: 0 of Mitsui_Takeda Chemicals Inc. P 1 is a glycerin-initiated polypropylene oxide having an average molecular weight of 550 g/mo and a hydroxyl value of 310 mg KOH/g 'YUKOL 1030 from SK Chemicals of Korea. 〇 P2 is a sorbitol-initiated polypropylene oxide having an average hydroxyl equivalent of about 1 Torr. P 3 is a poly(tetrakisinyl) light diol having a hydroxyl equivalent of about 9 Å, which is produced by Dalian Chemical Company of Taiwan. P 4 is a poly(trimethylene ether) glycol prepared from bio-based 1,3-propanediol having an average hydroxyl equivalent of about 1, 〇7〇, and an APHA color of about 25, which is produced from ugly such as ruthenium (10) (DuPont). . P 5 is a low unsaturation polyether polyol prepared by addition polymerization of propylene oxide to a propylene glycol initiator using a DMC catalyst, followed by capping with ethylene oxide, and an average molecular weight of 4,000 8 / 〇 1 〇 hydroxy value is about 28 «1 § crying 11 ^, the nominal functionality is 2, the first-level hydroxyl functional group content is about 87 〇 / of the total hydroxyl weight. Weight, sold by Bayer AG, acclaim POLYOL 4220N. P 6 is a low-unsaturation polyether polyol prepared by using 1) 1 : (: catalyst to propylene oxide addition polymerization to a propylene glycol initiator, the average molecular weight is 4, 〇〇〇 g / mo), The hydroxyl value is about 28 mgKOH/g, the degree of unsaturation is 〇_〇〇5meq/g, and the weight of the second-order hydroxyl group (also known as secondary hydroxyl) is 1〇〇0/〇, and the nominal functionality is 2 , sold by Bayer AG, ACCLAIM POLYOL 4220. P 7 is a low unsaturation polyether polyol, which is polymerized to 1,1,1-trihydroxydecylpropane by using a DMC catalyst to convert propylene oxide to 25 201037000. Prepared with an initiator having an average molecular weight of 3,000 g/m〇1, a base value of about 57.6 mgKOH/g, an unsaturation of 0.005 meq/g '100% by weight of a second-stage hydrocarbyl functional group, and a nominal functionality of 3, ACCLAIMPOLYOL 3300N from Bayer AG (Bayer). p 8 is a low unsaturation polyether polyol prepared by the addition polymerization of propylene oxide to a propylene glycol initiator using a DMC catalyst, followed by capping with ethylene oxide. , the average molecular weight is 2,000, the hydroxyl value is about 5611 ^ morphine, the nominal functionality is 2, the first The primary hydroxyl functional group content is about 87% by weight based on the total hydroxyl weight, sold by ACCLAIM POLYOL 2220N from Bayer AG (Bayer). Ο P 9 is a low unsaturation polyether polyol which is polymerized by propylene oxide using a DMC catalyst. Prepared to a propylene glycol initiator with an average molecular weight of 8, 〇〇〇g/md, a hydroxyl value of about 14 mg KOH/g' 100% by weight of a second-level hydroxyl functional group, a nominal functionality of 2, sold by Bayer AG (Bayer) ACCLAIM POLYOL 8200. P 10 疋 poly(propylene oxide-epoxyether) copolymer 'additional polymerization of propylene oxide to a propylene glycol initiator by using a potassium hydroxide catalyst, and then sealed with ethylene oxide Prepared at the end, the content of the ethylene oxide was 19% by weight. The content of the first-stage hydroxyl functional group was about 53% by weight of the total hydroxyl group. The average molecular weight was 2,000 g/mo. The base value was about 56 J mg K〇H/ g, the degree of unsaturation is ❹ 0.03 meq/g, and the nominal functionality is 2. 泛(衣我丙烧" 'epoxyethyl bromide copolymer' by using a hydrogenation catalyst to reduce the ring = propyl addition 4 To sorbitol initiator, prepared by female ring 氡 炫 封 ,, epoxy B The content is set to 28% by weight, the first-stage trans-functional group content is about 31.3 mg KOH/g of the total weight of the base, and the nominal functionality is 6. 12 疋. Russian weight styrene acrylonitrile co-doped, the base value is 28_5 mg ΚΟΗ / g. The poly(epoxysulfo-epoxytriol) having a base equivalent of 1 〇50, 隹&r> 'σ from Bayer AG's ARCOL POLYOL HS-100. & sterol' by the use of a potassium hydroxide catalyst to add propylene oxide to the butanol 26 201037000 initiator with a hydroxyl value of 8.5 mg KOH / g. DEOA 疋 - ethanolamine 'purity more than 99% by weight, sold in Sigma_Aldrieh (Sigma Aldrich). PEG 4〇0 is a reagent grade poly(ethylene glycol) with an average molecular weight of 働, purity over 98 5%, sold by Sigma-Aldrich (Sigma Aldrich). Glycerin is more than 99 % GC reagent grade glycerol, sold from the other - steal this (Sigma Aldrich). SC is sodium sulphate # 2M aqueous solution, prepared from deionized water and more than 99% pure grade sodium carbonate 'sold from Sigma- Aldrich (Sigma Aldrich) SBC is a 0.5 M aqueous solution of sodium bicarbonate prepared from deionized water and reagent grade sodium hydrogen sulphate of purity over Na, sold from Sigma-Aldrich (Sigma Aldrich). Oxygen and Polycopolymer Surfactant, available from Ak pr〇ducts and Chemicals Inc. (Air Products) DABC〇DC 595〇. DC 5179 is a low release polyoxo-polyalkylene oxide copolymer surfactant sold by his Products and Chemicals Inc. ) DABC 〇 DC 5179.

Niax A-230 is a second-grade amine mixture sold by Chemtura Corp. S〇 refers to stannous octoate, sold by Air Products and Chemicals Inc. (DACCO T-9). DBTDL refers to dibutyltin monolaurate sold by Dabc(R) T-12 from Air Products and Chemicals Inc. (Air Products). UV is 2-(2'-hydroxy-3'5,-di-tert-amylphenyl)benzotriazole, Chemical Abstract No. 25973-55-1, manufactured by Taiwan Yongguang Chemical Industry Co., Ltd. 27 201037000 "Index" means the ratio of the total number of moles of reactive isocyanate groups in the reaction mixture divided by the total number of moles of isocyanate reactive groups in the reaction mixture multiplied by 100. "pbw" means parts by weight. In the following detailed description, the properties of the polyurethane foams given in the examples were determined according to the following test methods: "Center density" was determined in accordance with JIS K6400 method (1997 edition). "IFD (Indentation Force Deflection) hardness 25%" is determined by a 25% compression load according to the JISK64〇0 method (1997 edition). 〇 “CLD (Compression Load Deflection) hardness 25%” is determined by 25% compression load according to JIS K6400 method (1997 edition). “Hardness change” refers to CLD hardness measured at 23 °C. Control, the ratio of increase in CLD hardness (expressed in %) measured at -5 ° C. The CLD hardness of 25% was determined according to the JIS K6400 method (1997 edition). The test sample was conditioned at the specified temperature for at least 24 hours before the test. Tensile strength" is determined in accordance with JIS K6400 method (1997 edition). "Elongation" is determined in accordance with JIS K6400 method (1997 edition). "Tear strength" is determined in accordance with JIS K6400 method (1997 edition). The center "falling ball resilience" is in accordance with The JISK6400 method (1997 edition) is determined. It is determined according to the JIS K6400 method (1997 edition). "Dry compression deformation" refers to the dry heat compression deformation determined according to the JIS K6400 method (1997 edition) "wet compression deformation" means according to JIS K6400 The wet heat compression set determined by the method (1997 edition). The "UV stability" value is the color fastness measurement obtained according to AATCC 16-1990, Option E. The foam sample is placed under a UV lamp and exposed to ultraviolet light 20 Hour. With standard gray The ratio of the card to the ratio of 28 201037000 is expressed as the level of I·5. The level 5 means that there is no color change at all, the level 1 means almost dark color, and the value of level 4 and above indicates that there is no visual change that can be discerned by the naked eye.曰 "Molding plus reading, is a face evaluation, with a cake layered after foaming _ foam is rated as "good", the foam shrinks after foaming but the recovery after rolling twice is "may In the case of the trouble, the evaluation that the foam shrinks after foaming and does not recover after rolling twice is "poor,". The present invention is embodied in the following embodiments, and the invention should be limited in any way to the scope of the invention. In addition to (d), the amount of money and percentage (four) parts by weight and weight percentage. Examples 1-30 and Comparative Example C1 - C5 Examples 1-10 and Comparative Examples C1 - C5 Examples (4) and comparative examples were prepared by mixing the components shown in Table 2-1 #口2-2. Example d-C5 soft poly-low forwarding face. Prior to foaming, the fraction (10) is adjusted for at least 24 hours in an incubator with a temperature control of 23. Prior to the addition of the organotin compound, the c〇wles type mixer with a rotational speed set to a non-recorded steel cup was premixed with the ingredients other than the organotin compound and isocyanuric acid in 4 seconds. . After premixing, the organotin compound (if used) is then added to the cup and mixed for another 2 seconds, the rotational speed being set to 1,500 rpm. The selected isocyanate compound was then added to the resulting mixture and mixed with the resulting composition for 5 seconds. The weaving bottle is inverted and the 45 cm (length) χ 45 cm (see) Χ 45 cm (face) paper lining wooden box and foaming. After the bubble reaches its final height, let it rest for another ten minutes in the box and then remove it from the towel. The resulting foam was then stored in a ventilated and temperature controlled storage room at 27 ± 2 ° C for at least 72 hours. Then, according to the sample size described in the JIS K6400 method (1997 edition), a sample was cut from the center of the produced foam using a laboratory-scale electric error machine. The sample for testing the tear strength, tensile strength and elongation was then cut from the foam sheet of the specified thickness according to the sample size described in the ns κ 64 〇〇 method 〇 997 version). All samples were conditioned for at least 24 hours in a constant temperature humid chamber with a temperature control of 23 ± 1 C and a humidity of 50% prior to physical performance testing. 29 4201037000 Table 2-1 Foam calculation level 60kg/m3 Example 1 Formulation: P1 (pbw) - 48 P 2 (pbw) 30 — P 5 (pbw) 60 — P 6 (pbw) - — P 7 (pbw ) - P 8 (pbw) - P 9 (pbw) - P 10 (pbw) - 50 P 11 (pbw) - — 〇P 12 (pbw) 6 - P 13 (pbw) - 3 water (pbw) 0.67 0.51 PEG 400 (pbw) 4 2 DEOA(pbw) 1.3 1.1 ISO 1 index --- ISO 2 index 85 90 ISO 3 index one -- ISO4 index ---

Niax A-230 (pbw) — — ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( 6 3 °· 5 8 °· 40 — 40 40 40 40 50 — 36 — — — — — — 62 54 — -- — — 58 — :: 57 — :: - __ __ __ 55 — — — 4 — — 60 50 3 3 _ 1.5 1.5 0.39 0.51 0.51 0.68 0.68 0.51 0.51 2 2 2 3 5 — ~ 1.5 1.35 1.5 1.2 1.2 — — 105 — — — — — — — 90 90 — — 95 90 — — — 95 95 — ~ 1.15 1.0 1.0 0.8 0.8 1.0 1.0 0.31 0.31 0.45 0.54 0.57 0.32 0.36 0.85 0.85 0.85 0.7 0.85 0.8 0.8 OK OK OK OK OK OK 64.9 59.7 60.6 67.1 69.2 56.3 59.8 42 48 67 32 29 33 31 0.113 0.139 0.198 Untested and untested Not tested 5.8 18.7 5.3 Untested Untested Untested 186 127 134 213 197 171 162 274 248 238 315 302 216 237 191 176 161 196 181 177 182 5 3 3 8 10 4 2 3.1 4.1 3.4 4.7 5.2 7.3 8.6 Visual OK OK Center Density (kg/m3) 68.2 61.3 IFD 25% (N/314cm2) 87 58 CLD25% Hardness (N/cm2) 0.257 0.156 Hardness (%) 22.3 7.2 Tensile strength (kPa) 86 166 Elongation (%) 164 227 Tear strength (N/m) 131 152 Center ball resilience (%) 4 4 Dry compression set (%) 9.2 4.4 30 201037000 Wet compression deformation (%) 8.8 4.6 3.4 2.6 5 4.5 Untested Untested Untested Untested Table 2-2

Foam grade kg 60kg/m3 Comparative Example C1 C2 C3 C4 C5 Formulation: P 1 (pbw) 55 50 50 31 50 P 2 (pbw) ~ — ~ 10 ~ P 5 (pbw) — — — — — P 6 ( Pbw) ~ — 50 — -- P 7 (pbw) — 50 ~ 55 50 P 8 (pbw) — — — — — P 9 (pbw) 45 — ~ — — P 10 (pbw) One — — — — P 12 (pbw) — — — — ~ P 13 (pbw) ~ — ~ — 3 Water (pbw) 1.3 1.3 0.39 0.39 1.3 PEG 400 (pbw) — — 4 4 — DEOA (pbw) ~ — 1.2 1.2 ~ ISO 1 Index 90 — 90 — ISO2 Index — 90 95 — — ISO 3 Index — ~ — — 90 ISO 4 Index — — — — — Niax A-230 (pbw) 0.6 0.6 -- — 0.6 SC (pbw) ~ — 1.15 1.15 ~ DBTDL (pbw) 0.35 — 0.45 0.45 - SO (pbw) — 0.35 — — 0.4 DC 5950 (pbw) 0.25 0.25 1.2 1.2 0.25 Foam Performance: Visual collapse of cotton candy foam Marshmallow foam collapse OK Center density (kg/m3 ) ~ — — — 60.5 IFD 25% (N/314 cm2) — A — 54 CLD 25% Hardness (N/cm2) — — — --1 0.152 Hardness Change (%) — — — — 6.1 Tensile Strength (kPa) — — — — 107 Elongation (%) — — — — 241 Tear Strength (N/m) — — — — 124 Center Falling Ball Resilience (%) — — — — 5 31 201037000 Dry Compression Deformation (%) Wet Compression Deformation (%) • f fine (four) contrast common standard hair formula (comparative real C5) · soft polyurethane · Θ 低 low feeding foam IS injection of the king performance, hair (four) mechanical zensaki $ activity. Conventional high unsaturated polyol and DMC low unsaturated polyol - in Comparative Example C5. Comparative Examples C1-C4 produced only the crease of the _ or Wei "glyph" block, and no strong household = could be used for the physical properties test of the progressive foam. EXAMPLES μιο illustrates that the amicotinic acid active composition (b) of the present invention provides sufficient activity to react with an aliphatic or aliphatic acid in an addition polymerization prepared by a soft polyurethane low-rebound foam. The soft (IV) ammonia self-desired low-foaming foam performance of the head is superior to the conventional low-rebound foam prepared by the methyl benzene diisocyanate (Comparative Example C5).

^ Example 11-JS, using the same procedure as used in the preparation of mK), Example U_18 was prepared except that the selected quinones P3 and P4 were angered in an oven at a temperature of 6 G ± lt. When the polyol 6 is completely dissolved, the polyol is then side-made before further foaming. c brewing room keeps ^ Ϊ ί ϊ ί ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ 四 四 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温 恒温The polyol P3 or P4 is mixed with other polyols. The preparation was carried out by mixing the components shown in Table 3 - «Ammonia-grown low resilience foam. Before adding the organotin compound, it is subtracted in 15 liters without cup = k is the slave of 2, and the CGwles of the G0G rpm is combined with the composition of the tin compound and the isocyanide in 4 () seconds. Start. After premixing, then add = compound (if used) to the cup, mix for 2 more seconds, and set the rotation speed to 2 Na. After that, the selected chaotic acid ester compound is added to the resulting mixture and mixed with 3, 〇 (8) _ and the resulting composition: 5 ^ marriage mixture is poured into the top open Μ centimeters (length) χ 45 cm (width) shame (high) ) Foaming. After the blister reaches its final height, it is allowed to stand still in the box for another ten minutes. The surface is kept in a ventilated and temperature controlled at 27±2 °C according to the JIS K6400 method (1" The sample was cut from the foamed body by a laboratory-scale electric saw machine, and then cut out from the foam plate of the specified thickness according to the sample size described in the method of Μ (8). Strength, tensile strength and elongation of the sample. All samples were conditioned for at least 24 hours in a constant temperature and humidity chamber controlled at -23 ± 1 °C and 50% humidity before further physical property testing.

3 Foam grade kg60kg/m3 Example 11 12 13 14 15 16 17 18 Formulation: P 1 (pbw) 31 31 36 36 21 21 15 17 P 2 (pbw) — — — — 10 10 — ~ P 3 ( Pbw) — 65 -- 60 -- — 79 79 P 4 (pbw) 65 — 60 — 65 65 ~ — P 13 (pbw) — — — ~ — 2.5 2 2 Water (pbw) 0.71 0.71 0.67 0.69 0.55 0.55 0.71 0.71 Glycerol (pbw) 5 5 5 5 5 5 6 4 DEOA (pbw) 2.4 2.4 2 2.1 1.8 1.8 1 1 ISO 1 Index 85 85 90 90 -- — — — ISO 2 Index — — — — 85 85 — — ISO 6 Index ~ — — — — — 85 85 SC (pbw) 0.8 0.8 0.85 0.85 1.0 1.0 0.8 0.8 DBTDL (pbw) 0.36 0.36 0.3 0.33 0.36 0.36 0.54 0.51 DC 5950 (pbw) 1 1.05 1 1.05 0.25 0.25 0.8 0.8 Foam properties: Visual 0K OK 0K 0K Shrink OK OK OK Center Density (kg/m3) 62.3 57.8 60.3 59.8 68.9(*) 61.5 59.2 57.3 IFD 25% (N/314cm2) 67 81 72 69 43(*) 71 92 86 CLD 25% Hardness (N/cm2) 0.204 0.261 0.204 0.208 0.115« 0.196 Untested hardness change (%) 6.2 6.7 7.1 9.6 13.8 Untested tensile strength (kPa) 268 294 245 233 315 (" 298 286 273 Elongation (%) 309 331 287 292 280 (*} 264 265 282 Tear strength (N/m) 296 317 337 351 362(*) 341 389 372 Center ball return resilience (%) 7 12 8 10 4(*) 6 11 9 Dry compression set 3.1 2.4 3 3.1 8.9r) 6.8 14.6 16.3 Wet compression set (%) 2.9 4.7 3.1 2.9 10.1π 7.8 Untested Untested: Results from foam samples recovered after rolling 33 201037000 Example A closed cell foam is obtained which shrinks when internally. By passing the hair through the - electric / 1 leg start, move the stainless steel b-type crusher to grind the foam twice to prevent "into the contraction. Before the physical performance test, make the The impact foam was conditioned for at least 72 hours in a temperature-controlled wet box with a temperature control of 23 ± rc and a humidity of 5 G%. The physical properties of Example 15 were determined using samples cut from the center of the cross-linked foam. Examples 19-27 The soft polyurethanes of Example π·27 were prepared by mixing the components shown in Table 4 t. The low-rebound foams of Example π·27 were prepared by the same procedure as described in Example 1·18. In Example 19_2, the UV was added to the pre-mixing step to add the carefully identified iso-cyanide active mixture.

The foam females of Examples 19-27 were tested in accordance with the procedure shown in Example h8 except for UV stabilized enthalpy. In the w stability test, a sample of 1 () cm long χ 5 cm wide and X 0.5 cm thick was placed in an oven with an internal temperature set at 8 〇 ± 1 〇 c, and a sram ULTRA-VITALUX 300 watt uv lamp was installed in the oven. The foam sample is directly above 3 cm. The sample was exposed to UV light at 2 G. Compared to a standard grayscale card, the result was expressed as a rating of 15. Level 5 means that there is no change in the color of the page, and level i means almost dark. Level 4 and values indicate no visual changes that are discernible by the naked eye. Foam grade 301ατ/ττΠ Example 19 20 21 22 23 24 25 26 27 Formulation: P 1 (pbw) 20 20 20 20 40 30 60 cc\ CA P 3 (pbw) 77 _ 76 76 15 15 ou jU P 4 (pbw) — 77 P 11 (pbw) P 13 (pbw) water (pbw) glycerol (pbw) 1.5 3 1.2 3 0.44 4 0.44 4 45 2 3.45 55 2 3.45 40 2 3.45 40 2 3.45 50 2 3.45 DEOA (pbw ) 1.6 1.8 1.2 1.2 1 1 1 ISO 1 index iso 5 index 85 90 90 95 85 85 1 80 1 90 1 80 SC (pbw) SBC (pbw) 3.75 3.75 3.75 3.75 0.8 0.8 0.8 0.8 0.8 DBI DL (pbw) 0.45 0.45 0.4 0.4 0.28 0.28 0.42 0.42 0.45 34 201037000 DC 5950 (pbw) 0.9 0.9 0.9 0.9 UV 2 2 2 2 Foam Performance: Visual OK OK OK OK Center Density (kg/m3) 28.6 31.4 26.3 24.1 IFD 25% (N/ 314cm2) 37 41 43 56 CLD25% hardness (N/cm2) 0.106 0.110 0.117 0.149 Hardness change (%) 7.2 8.1 11.6 9.8 Tensile strength (kPa) 196 235 210 217 Elongation (%) 287 296 292 258 Tear strength (N /m) 224 244 267 278 Center ball return resilience (%) 6 8 9 11 Dry compression deformation 8.4 5.6 7.4 4.3 Wet compression set (%) 8.7 4.7 5.6 5.7 UV stability 5 5 5 5 0.8 0.8 0.8 0.83OK29.33811148144143716.1 Lai 4 0.83 =43=152132160814.1 Fine 4 ΟΚ ΟΚ ΟΚ 28.7 30.6 29.4 30 55 26 0.105 0.149 0.074 19.5 34.8 10.9 164 143 172 142 117 153 153 128 164 4 13 4 9.5 22.6 6.4 14.9 28.7 12.6 4 4 4 The foam prepared in Examples 19-27 illustrates that the disclosed isocyanate-reactive mixture can be used to prepare low-rebound foam of non-yellowing polyurethane with a density as low as 24 kg/m3 (about 1.5 pCf). body. These low density, non-yellowing polyurethane low resilience foams are particularly useful in apparel applications such as bra pads and shoulder pads. Examples 28-30 软 The flexible polyurethane low resilience foams of Examples 28-30 were prepared by mixing the components shown in Table 5. All selected components were controlled at a temperature of 23 ± 1 before foaming. (: Adjust the inside of the box for at least 24 hours. Before adding the organotin compound, use a Cowles type mixer with a rotation speed set to 1,500 rpm in a 1.5 liter stainless steel cup, except for the organotin compound and isocyanuric acid in 40 seconds. The ingredients are pre-mixed together. After pre-mixing, the organotin compound (if used) is then added to the cup and mixed for another 20 seconds. The rotation speed is set to 1,500 rpm. The selected isocyanate compound is then added to the resulting mixture at 3,000 rpm. Mix with the resulting composition for 5 seconds. Immediately pour the mixture into a 40 cm (length) X 40 cm (width) X 10 cm (height) aluminum mold preheated to 60 ° C, leaving 4 small holes in the top of the mold cover. The mold temperature was maintained at 60 t and the lid was capped. After the mold temperature was maintained at 60 ° C for 10 minutes, the molded flexible polyurethane low resilience foam was taken out of the mold and then before any further testing. Store the prepared foam in a ventilated and temperature controlled 35 201037000 in a storage room at 27 ± 2 ° C for at least 72 hours. Table 5 Example __28 Recipe: --- 30 P 1 (pbw) 20 P 5 (pbw) ·· 25 25 P 8 (pbw) 76 56 35 P 11 (pbw) •亀— 36 P 12 (pbw) 2 15 Water (pbw) 0.6 2 3.5 PEG 400 (pbw) 4 0.54 0.54 DEOA (pbw) 1.68 4 4 ISO 1 Index • 1.46 1.55 ISO2 index 95 95 90 SC (pbw) 0.8 A DBTDL (pbw) 0.55 0.9 0.9 DC 5179 (pbw) 0.9 0.6 0.55 Foam performance: 0.9 0.84 Molding processability can be difficult center density (kg/m3 ) __72.6 Good and good ---^ 74.7

G Industrial 柯 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Claims (1)

201037000 VII. Patent Application Range: 1. A low-rebound foam 'reaction product containing the following components: a. an iso-I-ester component, the isocyanate component is substantially free of isocyanate groups and is directly attached to the benzene ring. An aromatic isocyanate; b. an isocyanate reactive mixture comprising: (bl) a first isocyanate active component having at least 26 isocyanate reactive groups, a hydroxyl equivalent weight of 80-800 grams, bismuth (b2) The diisocyanate active component has an average hydroxyl functionality of 1.8-6.0, and the fluorenyl group 1 is 600-6,000 g. The 'primary base content is: to: '30 aliquots' to the second The isocyanate-reactive component is used in an amount of 100 parts by weight based on the total weight of the base, wherein the first isocyanate-reactive component is used in an amount of 2 〇 9 9 parts by weight 'the second isocyanate-reactive component is used in an amount of 1 〇 8 parts by weight 'based on 100 parts by weight of the isocyanate reactive mixture; c. catalyst; and ❹ d. optionally one or more selected from the group consisting of water, surfactants, crosslinkers Additives. 2. A foam as set forth in the scope of the patent application, wherein the first isocyanate-reactive component has from 2.6 to 6.5 isocyanate reactive groups. 3. The foam of claim 2, wherein the first isocyanate reactive component has from 2.7 to 5.5 isocyanate reactive groups. 4. The foam of claim 1, wherein the first isocyanate active component has a hydroxyl equivalent weight of from 1 to 7 g. 5. The foam according to claim 4, wherein the hydroxyl group equivalent of the active component of the cyanuric acid is 90-510 g. 37 201037000 6. The foam of claim 1, wherein the second isocyanate reactive component has an average hydroxyl functionality of from 1.85 to 4.5.彳 7. The foam of claim 1, wherein the second isocyanate reactive component has a hydroxyl equivalent weight of from 800 to 4,500 g. 4. The foam according to claim 2, wherein the second isocyanate active component has a first stage base group content of at least 40 parts by weight, based on the total weight of the second isocyanate active component hydroxyl group. 1 〇〇 by weight. 9. The foam of claim 8, wherein the second isocyanate active hydrazine component has a first stage base content of at least 51 parts by weight, and the first isocyanate is The vinegar active component is 100 parts by weight based on the total weight of the base. 10. The foam according to claim 1, wherein the first isocyansone active component is used in an amount of 2 G_7 (). The second heterogeneous component is used in an amount of from 30 to 80 parts by weight, based on 100 parts by weight of the lysate active mixture, by weight. ν, 鼠1·=, the foam shown in the item i of the patent range, wherein the isocyanate vinegar is selected from one or more of the following sulphuric acid vinegar: aliphatic sulphuric acid vinegar, Yuelu The isocyanate and isocyanate groups are not directly attached to the family isocyanate on the phenyl ring.发泡12', the foam of the eleventh item, wherein the aliphatic allogeneic Y heterogeneous material or a blend of a fat-polyisocyanate mono- and dimer; wherein: Ff : an aromatic polyisocyanate in which at least one polyisocyanate is trimerized to produce a direct, alicyclic polyisocyanate or isocyanate group which is not directly bonded to the benzene ring; the NCO content in the blend is 2〇5 • 100 parts by weight of total isocyanide in the 5 〇 gt component; and the average calculated functionality of cyanoguanidine is 2-3. 38 201037000 The foam shown in which one of the aliphatic iso-methylene groups is one of: hexamethylene diisocyanate, hexa H fine 1, undecane triisocyanate, +-alkaned diisocyanide:曰, its dimers and trimers. The foam shown in item 12, wherein the aliphatic polymethylene diisocyanate is a hexamethylene group The product of the polymerization. a foam shown in Item 11 of the above, wherein the alicyclic group ^ 3 alicyclic polyisocyanate monomer or alicyclic polyisocyanate is a blend of i and dimer; wherein: early = three is selected from the following at least one type of polyisocyanate The formation of a trimerization reaction ί 9 cyanate, alicyclic polyisocyanate or isocyanate ί is not directly attached to the aromatic polyisocyanate on the ring; [NCO content in the mixture is 20.5-38.0 Parts by weight, based on hydrazine hydrate, and / 100 parts by weight of total isocyanate in the knives; and _ 曰 average calculated functionality of 2-3. 16. The foam according to the fifteenth aspect of the invention, wherein the alicyclic group comprises at least one of the following: bicycloheptane triisoacetate, isophor, diisocyanate , dicyclohexyl carbaryl diisocyanate, methylcyclohexan & diisocyanate, dimercaptocyclohexyl diisocyanate g, its dimer and trimer = Η. ^Please refer to the foam shown in item 15 of the patent range. The alicyclic polyisocyanate of the towel is isophorone diisocyanate, and the trimer is a trimerization reaction of hexamethylene bis-isosuccinic acid S. Product. 18. The foam as described in the patent specification @u, wherein the isoammonic acid vine group is not directly bonded to the aromatic isocyanate on the benzene ring, and the isocyanate group is not directly bonded to the benzene ring. a blend of an aromatic polyisocyanate monomer or an isocyanate group which is not directly bonded to an aromatic polyisocyanate monomer and a trimer 39 201037000 on a benzene ring; wherein: at least one of the following polyisocyanates is selected from the group consisting of The formation of the trimerization reaction m Γ ΐ f isocyanate vinegar, alicyclic polyisocyanate, isocyanate vinegar, aromatic polyisocyanate on the stupid ring; the NCQ content in the f mixture is 2α5·44Ό Parts by weight, based on 100 parts by weight of total isocyanate in isogastric acid vinegar, and / knife; and the average calculated functionality is 2-3. ο ο ί ί ί ί ί ί ί ί ί ί ί ί 19. 19. 19. 19. ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί - isocyanate, tetradecyl benzodiamidino sulphate, dimers and trimers thereof. , Cyanide 2〇·2Ϊί1祀 The foam shown in Item 18, wherein the isocyanic acid Ϊ straight fjf to the aromatic ring on the aromatic polyisocyanate is benzodiacene i In the case of arsenic, the product of the dimerization reaction of the trimeric octapeptide. 21. The foam of claim 1, wherein the first ester active component (bl) is a polyepoxy two-burning, and a di-indenyl group having an unsaturation of less than 0.05 =. The foam shown in the first item of claim 2, wherein the first-isoindole, the active component (bl) is a polyglycolide, the ^ i' is catalyzed by a double metal cyanide conversion to U' and the degree of unsaturation is less than 〇〇2〇meq/g. 23. If you apply for a patent scope! The bubble-free body shown in the item, wherein the active component (b2) is poly(tetramethylene sulphate) diol, and the weight = l, 2^0-2, 400 g/m〇l The acid-acting group-knife hydroxyl functional group is a first-order hydroxyl group. All of the foams of the invention, wherein the second isocyanide 201037000 ester active component (b2) is poly(trimethylene ether) glycol, and the weight average molecular weight is 1,20 (K3,000 g/m〇i, the second isocyanate g of the active component (b2) in the active component (b2) can be trapped as the first-order meridine. 25. The foam shown in the item, wherein the second isocyanide, the active group f(b2) is a poly(ethylene oxide-propylene oxide) copolymer containing less than 7.5 parts by weight of ethylene oxide. The amount of the second isocyanato component is 1 part by weight. 6. The foam according to claim 25, wherein the second active component (b2) is a poly(epoxypyrene-epoxypropane) copolymer bis-alcohol, unsaturated , less than me.〇5meq/g, the first-stage hydroxyl content exceeds 51% by weight, based on the weight of the total hydroxyl groups in the first isocyanate-reactive component (b2). 7. t Apply for the foam in the first item of the ί利 range, the weight of the sedative agent 4 is 6 〇 420 420 g / m 〇 1 ' and has at least two isocyanic acid 28. The foam of item i of the patent scope, wherein the cross-linking agent of the cross-linking agent is 245·245 parts by weight', as shown in item f8 of 100 parts by weight of the isocyanuric acid active mixture The foam, wherein the crosslinking agent is a compound # I _12 parts by weight, and the foam represented by the isocyanate-active mixture of 1 part by weight of the isocyanate vinegar ί parts by weight (α 100 parts by weight of isocyanate vinegar active component heavy denier polyol has a solid content of 5·55 ΚΟΗ / g 〇 U 篁 聚合物 part of the polymer polyol, the base value is 15_50 mg 3l. Patent Application No. 1 is also a foam comprising the 0-5.0 item, wherein the isocyanate parts by weight (based on 100 parts by weight of the total foam) 41 201037000 is a cell opener The name of the polyepoxy secret is 1. The weight average molecular weight is 800_8,500 g/m〇1. The foam shown in item 31, wherein the sulphuric acid vinegar 1, the knife 3 〇·3 · 5 parts by weight (based on 100 parts by weight of the total weight of the foam, c-boiled (b3) as a cell opener'. The polyglycolate "nominal hydroxyl group is 1 degree, and the weight average molecular weight is 800-8,500 g /发泡 Ο 33. The foam of the first aspect of the tTf patent, wherein the catalyst W is a mixture of at least one of the following and an organometallic catalyst: a Bronsted acid and a metal salt or A salt of bromide acid and an alkaline earth metal. A foam according to claim 33, wherein the salt of the acid and the metal salt is sodium hydrogencarbonate. The foam according to Item 33, wherein the salt of the acid and the metal is sodium carbonate. 36. The foam according to claim 1, wherein the crosslinking agent is Formula I. The compound H(3-X)-N-[(CH2)2-OH]x wherein X is an integer of 1-3. 37. The foam of claim 36, wherein the cross-linking Ethanolamine 38_ is a method for preparing a low resilience foam comprising: reacting a reactant comprising the following components at an isocyanate index of about 65-110 Reaction: a. isocyanate component, the isocyanate component is substantially free of aromatic isocyanate directly attached to the soil by the isocyanate group; * b. isocyanate active mixture, the isocyanate active mixture Contains: 42 201037000 (bl) a first isocyanate active component having at least 26 isocyanate reactive groups having a hydroxyl equivalent weight of from 80 to 800 grams, (b2) a second isocyanate reactive component having an average hydroxyl functionality of from 1.8 to 6.0, The base is contained in an amount of from 600 to 6,000 g, the primary base content is at least 30 parts by weight, based on 100 parts by weight of the total weight of the second isocyanate active component hydroxyl group, wherein the first isocyanate The active component is used in an amount of from 20 to 90 parts by weight 'the second isocyanate-reactive component is used in an amount of from 1 to 80 parts by weight' based on 100 parts by weight of the isocyanate-activated mixture; c. a catalyst; Optionally, one or more materials selected from the group consisting of water, surfactants, crosslinking agents, and additives. 39. The method of claim 38, wherein the first isocyanate reactive component has from 2.6 to 6.5 isocyanate g reactive groups. 40. The method of claim 39, wherein the first isocyanate reactive component has from 2.7 to 5.5 isocyanate reactive groups. 41. The method of claim 38, wherein the first isocyanate reactive component has a hydroxyl equivalent weight of from 100 to 700 grams. 42. The method of claim 41, wherein the first isocyanate reactive component has a hydroxyl equivalent weight of from 90 to 510 grams. 43. The method of claim 38, wherein the second isocyanate reactive component has an average hydroxyl functionality of from 1.85 to 4.5. 44. The method of claim 38, wherein the second isocyanate reactive component has a hydroxyl equivalent weight of from 800 to 4,500 grams. 45. The method of claim 38, wherein the second isocyanate active component has a first stage hydroxyl group content of at least 40 parts by weight, and the second iso 43 201037000 cyanate ester active component is based on The total weight is 1 part by weight. 46. The method of claim 45, wherein the second isocyanate active component has a first stage hydroxyl group content of at least 51 parts by weight based on the total weight of the second isocyanate active component hydroxyl group of iOO parts by weight. . 47. The method of claim 38, wherein the first isocyanuric acid active component is used in an amount of from 20 to 70 parts by weight, and the second isocyanate is used as an active component. The amount is from 30 to 80 parts by weight, based on 1 part by weight of the isocyanate-based active mixture. 48. The method of claim 5, wherein the foam is prepared at an isocyanate index of from about 75 to about 105. 49. The method of claim 38, wherein the isocyanate group is selected from one or more of the following isocyanate: aliphatic isocyanate, alicyclic isocyanate, and isocyanate are not directly attached to benzene Guanzu isocyanate on the ring. The method of claim 49, wherein the aliphatic acid ester comprises an aliphatic polyisocyanate monomer or a blend of an aliphatic polyisocyanate and a trimer; wherein: the trimer The body is selected from the following ships: a polyisocyanate-product of the trimerization reaction, an aliphatic polyisocyanate vinegar, an alicyclic polyisocyanate vinegar or an isocyanate aryl group is not connected to the awkward ring The aromatic polyisocyanate; the NCO content in the blend is from 20.5 to 50.0 parts by weight, based on 100 parts by weight of the total isocyanate in the yttrium isocyanate component; and the average calculated functionality is 2-3. 51. The method of claim 5, wherein the aliphatic isocyanate comprises at least one selected from the group consisting of hexamethylene diisocyanate, hexamethylene diisocyanate, monoalkyl triisocyanate, Undecane diisocyanate, its monomer and trimer. 44 201037000 52. The method of claim 5, wherein the aliphatic polyisocyanate is hexamethylene diisocyanate, and the trimer is a trimerization reaction of hexamethylene diiso-fL acid vinegar Product. 53. The method of claim 49, wherein the cycloisocyanate comprises a blend of an alicyclic polyisocyanate monocyclic cycloaliphatic polyisocyanate monomer and a trimer; Ο the trimer is a product of a trimerization reaction of at least one polyisocyanate selected from the group consisting of an aliphatic polyisocyanate, an alicyclic polyisocyanate or an aromatic polyisocyanate in which an isocyanate group is not directly bonded to a stupid ring; The NCO content of the mixture is from 20.5 to 38.0 parts by weight based on 100 parts by weight of the total isocyanate in the isocyanate component; and the average calculated functionality is 2-3. 54. The method of claim 53, wherein the alicyclic isocyanate comprises at least one selected from the group consisting of biscycloheptane triisocyanate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, Cyclohexane diisocyanate, dimethylcyclohexane diisocyanate, dimers and trimers thereof. 55. The method of claim 53, wherein the alicyclic polyisocyanate is isophorone diisocyanate, and the trimer is a product of trimerization of hexamethylene diisocyanate. 56. The method of claim 49, wherein the aromatic isocyanate in which the isocyanate group is not directly bonded to the benzene ring comprises an aromatic polyisocyanate monomer or isocyanate group which is not directly bonded to the benzene ring. An aromatic polyisocyanate monomer and a trimerized blend which are not directly bonded to a benzene ring; wherein: the trimer is a product of at least one of the following polyisocyanate trimerization reactions: aliphatic Isocyanate, alicyclic polyisocyanate, or <not directly connected to the top of the shirt, Wei 45 201037000, the NCO content of the blend is 20.5-44.0 parts by weight, 100 parts by weight of the isocyanate component Total isocyanate count; and the average calculated functionality is 2-3. 57. The method according to claim 56, wherein the aromatic isocyanate in which the isocyanate group is not directly bonded to the present coating is at least one selected from the group consisting of the following sub-indenyl diisocyanide. Sour vinegar, tetramethyl stilbene diisocyanate, dimers and trimers thereof.土一, Ο Ο 8. The method shown in item 56 of the patent shed, the aromatic polyisocyanate in which the isocyanate group is not directly bonded to the aromatic ring is benzodiamidethylene dimethyl a product of a trimerization reaction of a decylene diisocyanate vinegar "n-decyl diisomeric acid ester." 59. The method of claim 38, wherein the hydrazine active component (M) It is a polyglycidil, with # = base, and the degree of unsaturation is less than 0.05 meq/g. (10) Chaos W曰 activity 60. As shown in the method of claim 38, the vinegar active component (bl) is agglomerated. Epoxy propylene, having at least, an isoindole, an isoxived ester activity catalyzed by a double metal cyanide chelate, and having an unsaturation of less than 0.020 nfeq^; W-propane ring-opening addition polymerization 61. The vinegar active component (10) as shown in item 38 of the patent application is poly(tetramethylene, the acid in the alcohol, 1,200-2,400#111〇1, the second nickname is missing ^ - know that the weight average molecular weight is a hydroxyl functional group which is a first-order hydroxyl group. All the phantoms in the active component (b2) are as shown in claim 38 of the patent application range. The component (b2) is a poly(1,200-3,00 (^/111〇1, the _|=~) diol of the second isocyanate described in the methylene phthalocene bis 22 The method wherein the molecular weight functional group is a first-order iso-trans-active component, as described in claim 38, wherein the second isononic acid 46 201037000, the active component (b2) And a poly(ethylene oxide-propylene oxide) copolymer comprising at least 7.5 parts by weight of ethylene oxide, based on 100 parts by weight of the second isocyanate active component. 64. The method wherein the second isocyanate component (b2) is a poly(ethylene oxide-propylene oxide) copolymer diol, and a propylene oxide addition polymerization is carried out to an initiator having two hydroxyl groups. Then prepared by capping with epoxy oxide, the degree of unsaturation is less than 〇〇5 meq/g, the first-stage hydroxyl group is more than 51% by weight, and the total hydroxyl group in the second isocyanate-reactive component (b2) Weight meter. 65. The method of claim 38, wherein the crosslinking agent has a weight average molecular weight of 60 to 420 g/mol and has at least two isocyanate reactive functional groups; 66. The method of the invention, wherein the crosslinking agent is used in an amount of 0.2-15 parts by weight 'mixed with 100 parts by weight of the isocyanate active 67. The method shown in claim 66 of the patent scope, Wherein the crosslinking agent is in an amount of from 1.2 to 12 parts by weight 'α 100 parts by weight of the isocyanate-containing active mixture. 6^ The wire shown in claim 38 of the patent, wherein the isocyanic surface living knife further comprises a polymer of 〇4 〇 by weight (based on 1 〇〇 part by weight of the active vinegar active component) The polyol, the polymer polyol in parts by weight, is 10. In terms of parts by weight of the polymer polyol, the method of the solid value of 22 KOH/g is as shown in item 38, and the isocyanate vinegar is 30-5.0 parts by weight (in 100 parts by weight of the foam) The total weight is 5%, and the weight average molecular weight is 800-8,500 g/md. 47 201037000 70. The method of claim 69, wherein the isocyanate-reactive component further comprises 〇_3 5 parts by weight (based on the total weight of the foam) - polyepoxy Propylene (b3) is used as a cell opener, and the polyglycidil has a nominal hydroxyl functionality of 1, and a weight average molecular weight of 8 〇〇-8, 50 〇g/mol. 71. The method of claim 5, wherein the catalyst (c) is a mixture of at least one selected from the group consisting of an organometallic catalyst: bromide acid and a metal salt or bromide acid A salt of an alkaline earth metal. 72. The method of claim 71, wherein the salt of bromide acid 0 and an alkali metal is sodium hydrogencarbonate. 73. The method of claim 71, wherein the salt of bromide acid and an alkali metal is sodium carbonate. 74. The method of claim 38, wherein the crosslinking agent is a compound of the formula: H(3x)-N-[(CH2)2-〇H]x, wherein X is An integer of 1, 2 or 3. 75. The method of claim 74, wherein the cross-linking agent is a two-item t ίϊί ί Included in the '75 patent application scope - 48 201037000 4. Designation of representative drawings: (1) The representative representative of the case is: ( ). (2) A brief description of the symbol of the representative figure: None 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: